The International System of Units is the modern form of a. Metrics. b. Weights. c. Powers.

1. The International System of Units is the modern form of a. Metrics. b. Weights. c. Powers. d. Exponents. The International System of Units is abbreviated as a. ISOU. b. ISU. c. IS. d. SI. abbreviated SI from the Frenchle Système international d'unités In science, we will measure with a. Standard units. b. Metric units. c. Traditional units. d. American units. The space an object occupies is measured by a. Volume. b. Temperature. c. Mass. d. Time.

2. The following tool is used to measure mass a. Ruler. b. Graduated Cylinder. c. Triple Beam Balance. d. Scale. The following tool is used to measure weight a. Ruler. b. Graduated Cylinder. c. Triple Beam Balance. d. Scale. The following tool is used to measure volume of a liquid a. Ruler. b. Graduated Cylinder. c. Triple Beam Balance. d. Scale. The following tool is used to measure length a. Ruler. b. Graduated Cylinder. c. Triple Beam Balance. d. Scale.

3. The following units may be used to measure mass a. meters. b. liters. c. grams. d. pounds. The following units may be used to measure weight a. meters. b. liters. c. grams. d. pounds. The following units may be used to measure volume of a liquid a. meters. b. liters. c. grams. d. pounds. The following units may be used to measure length a. meters. b. liters. c. grams. d. pounds.

4. Which of the following is not a metric unit a. meters. b. liters. c. grams. d. pounds. Which of the following is the largest metric unit a. milli. b. centi. c. kilo. d. deci. Which of the following is the smallest metric unit a. milli. b. centi. c. kilo. d. deci. The following units may be used to measure distance a. meters. b. liters. c. grams. d. pounds.

5. Density is a. The amount of material in an object. b. The amount of space something takes up. c. The amount of matter in a given space. d. The a measurement of the force of gravity pulling down on the mass of an object. Volume is a. The amount of material in an object. b. The amount of space something takes up. c. The amount of matter in a given space. d. The a measurement of the force of gravity pulling down on the mass of an object. Mass is a. The amount of material in an object. b. The amount of space something takes up. c. The amount of matter in a given space. d. The a measurement of the force of gravity pulling down on the mass of an object. Weight is a. The amount of material in an object. b. The amount of space something takes up. c. The amount of matter in a given space. d. The a measurement of the force of gravity pulling down on the mass of an object.

6. The International System of Units is the modern form of a. Metrics. b. Weights. c. Powers. d. Exponents. Solid volume is measured in _______ units a. Half. b. Linear. c. Square. d. Cubic. The following units may be used to measure volume of a liquid a. meters. b. liters. c. grams. d. pounds. The space an object occupies is measured by a. Volume. b. Temperature. c. Mass. d. Time.

7. The following tool is used to measure mass a. Ruler. b. Graduated Cylinder. c. Triple Beam Balance. d. Scale. The International System of Units is abbreviated as a. ISOU. b. ISU. c. IS. d. SI. Which of the following is the smallest metric unit a. milli. b. centi. c. kilo. d. deci. Mass is a. The amount of material in an object. b. The amount of space something takes up. c. The amount of matter in a given space. d. The a measurement of the force of gravity pulling down on the mass of an object.

8. I have 5 cubic centimeter cubes and an equal sized rectangular prism. The rectangular prism will have a a. Greater volume. b. Equal volume. c. Less volume. d. No volume. Solid volume is measured in _______ units a. Half. b. Linear. c. Square. d. Cubic. I have 5 centimeter cubes and an equal sized rectangular prism made out of the same kind of material. The rectangular prism will have a a. Greater mass. b. Equal mass. c. Less mass. d. No mass. When I add a solid to a liquid to find the difference in the volumes – it is called a. difference. b. differential. c. displacement. d. diagnosis.

9. One ml is equal to a. 1aa b. 1bb c. 1cc d. 1dd How does the volume of a liquid change when I place 5 cubic centimeter cubes in it a. The level doesn’t change b. The level drops 5ml c. The level rises 1ml d. The level rises 5ml Solids and liquids take up a. length b. space c. time d. trouble To find the volume of a marble, I can a. Put it in an empty graduated cylinder and read the height in ml b. Add a certain amount of liquid to a graduated cylinder, add the marble, record that volume c. Add a certain amount of liquid to a graduated cylinder, add the marble, record the difference in the two volumes d. Add a certain amount of liquid to a graduated cylinder, add the marble, record the sum of the two volumes

10. The amount of space that a gas takes up is its a. volume. b. mass. c. pressure. d. density. In which state of matter are particles packed tightly together in fixed positions? a. gas b. solid c. liquid d. compound Which state of matter undergoes changes in volume most easily? a. solid b. liquid c. gas d. frozen What physical property of matter can you measure with cubic centimeters? a. mass b. length c. density d. volume

11. How do liquid water, ice, and water vapor differ from each other? a. They are different states of matter. b. They are different compounds. c. They are made of different kinds of molecules. d. They are made of different kinds of atoms. A solid is a state of matter that has a(n) a. indefinite volume and an indefinite shape. b. definite volume and a definite shape. c. definite volume and an indefinite shape. d. indefinite volume and a definite shape. In which state of matter do the particles spread apart and fill all the space available to them? a. crystal b. liquid c. gas d. solid Particles of a liquid a. are tightly packed together and stay in a fixed position. b. have no viscosity. c. decrease in volume with increasing temperature. d. are free to move throughout a container but remain in close contact with one another.

12. I have 5 cubic centimeter cubes and an equal sized rectangular prism. The rectangular prism will have a a. Greater volume. b. Equal volume. c. Less volume. d. No volume. I have 5 centimeter cubes and an equal sized rectangular prism made out of the same kind of material. The rectangular prism will have a a. Greater mass. b. Equal mass. c. Less mass. d. No mass. When I add a solid to a liquid, the level of the liquid rises – this is called a. difference. b. differential. c. displacement. d. diagnosis. How does the volume of a liquid change when I place 5 cubic centimeter cubes in it a. The level doesn’t change b. The level drops 5ml c. The level rises 1ml d. The level rises 5ml

13. Two rectangular prisms are made of the same wood. One prism is exactly half as long as the other. When I float them in a liquid, the shorter prism will a. Float higher b. Float lower c. Won’t float d. Float exactly the same Two rectangular prisms are made of the same material. One prism is exactly half the size as the other. When I measure the volume, the shorter prism will a. Have twice the volume b. Have half the volume c. Have the same volume d. Have no volume Two rectangular prisms are identical in size, but made of different materials. One prism floats, the other will sink. When I measure the volume, the prism that floats will a. Have twice the volume b. Have half the volume c. Have the same volume d. Have no volume Two rectangular prisms are identical in size (equal volume), but are made of different materials. One prism floats, the other will sink. When I measure the mass, the prism that floats will a. Have more mass b. Have less mass c. Have equal mass d. Have no mass

14. To find the volume of a marble, I can a. Put it in an empty graduated cylinder and read the height in ml b. Add a certain amount of liquid to a graduated cylinder, add the marble, record that volume c. Add a certain amount of liquid to a graduated cylinder, add the marble, record the difference in the two volumes d. Add a certain amount of liquid to a graduated cylinder, add the marble, record the sum of the two volumes I start with 10ml of water in a graduated cylinder. I add an object. The level now reads 26ml. What is the volume of the object? a. 10ml b. 26ml c. 36ml d. 16ml I start with 10ml of water in a graduated cylinder. I add an object. The level now reads 26ml. What is the volume of the object? a. 10ml b. 26ml c. 36ml d. 16ml The SI unit for volume is the a. ounce. b. pound. c. liter. d. gram.

15. To find the mass of 10ml of water a. Pour it on the pan and read the mass b. Set a cup with 10ml of water on the pan and read the mass c. Find the mass of an empty cup. Add 10ml of water to the cup – find the mass of the cup with 10 ml of water in it. Add the two masses together. d. Find the mass of an empty cup. Add 10ml of water to the cup – find the mass of the cup with 10 ml of water in it. Find the difference of the two masses. An empty cup has a mass of 2g. I add an object. The total mass now reads 6g. What is the mass of just the object? a. 2g b. 6g c. 4g d. 8g How would you calculate the density of an object? a. Add the mass to its volume. b. Divide its mass by its volume. c. Multiply its volume times its mass. d. Subtract its mass from the volume. Which object has the greatest density? a. twenty kilograms of cement b. twenty kilograms of feathers c. twenty kilograms of paper clips d. twenty kilograms of plastic bottles

16. Water has a density of 1g/ml. Based on density, which of the following will float on top of plain water? a. Maple syrup 1.37g/ml b. Light Karo syrup 1.33g/ml c. Water with food coloring 1g/ml d. Rubbing Alcohol 0.87g/ml Water has a density of 1g/ml. Which of the following will be the very top layer? a. Maple syrup 1.37g/ml b. Light Karo syrup 1.33g/ml c. Baby oil 0.82g/ml d. Rubbing Alcohol 0.87g/ml Water has a density of 1g/ml. Which of the following will be the very bottom layer? a. Maple syrup 1.37g/ml b. Light Karo syrup 1.33g/ml c. Baby oil 0.82g/ml d. Rubbing Alcohol 0.87g/ml A branch and a twig from the same tree fall in the creek. The branch will a. Float higher b. Float lower c. Won’t float d. Float exactly the same

17. Water has a density of 1g/ml. Which of the following will be the very bottom layer? a. Maple syrup 1.37g/ml b. Light Karo syrup 1.33g/ml c. Baby oil 0.82g/ml d. Rubbing Alcohol 0.87g/ml An empty cup has a mass of 2g. I add an object. The total mass now reads 6g. What is the mass of just the object? a. 2g b. 6g c. 4g d. 8g I start with 10ml of water in a graduated cylinder. I add an object. The level now reads 26ml. What is the volume of the object? a. 10ml b. 26ml c. 36ml d. 16ml How does the volume of a liquid change when I place 7 cubic centimeter cubes in it a. The level doesn’t change b. The level drops 7ml c. The level rises 1ml d. The level rises 7ml

18. To find the mass of 10ml of water a. Pour it on the pan and read the mass b. Set a cup with 10ml of water on the pan and read the mass c. Find the mass of an empty cup. Add 10ml of water to the cup – find the mass of the cup with 10 ml of water in it. Add the two masses together. d. Find the mass of an empty cup. Add 10ml of water to the cup – find the mass of the cup with 10 ml of water in it. Find the difference of the two masses. Water has a density of 1g/ml. Based on density, which of the following will float on top of plain water? a. Maple syrup 1.37g/ml b. Light Karo syrup 1.33g/ml c. Water with food coloring 1g/ml d. Rubbing Alcohol 0.87g/ml Water has a density of 1g/ml. Which of the following will be the very bottom layer? a. Maple syrup 1.37g/ml b. Light Karo syrup 1.33g/ml c. Baby oil 0.82g/ml d. Rubbing Alcohol 0.87g/ml How would you calculate the density of an object? a. Add the mass to its volume. b. Divide its mass by its volume. c. Multiply its volume times its mass. d. Subtract its mass from the volume.

19. An empty cup has a mass of 2g. I add an object. The total mass now reads 6g. What is the mass of just the object? a. 2g b. 6g c. 4g d. 8g Water has a density of 1g/ml. Which of the following will be the very top layer? a. Maple syrup 1.37g/ml b. Light Karo syrup 1.33g/ml c. Baby oil 0.82g/ml d. Rubbing Alcohol 0.87g/ml An empty cup has a mass of 2g. I add an object. The total mass now reads 6g. What is the mass of just the object? a. 2g b. 6g c. 4g d. 8g Water has a density of 1g/ml. Which of the following will be the very bottom layer? a. Maple syrup 1.37g/ml b. Light Karo syrup 1.33g/ml c. Baby oil 0.82g/ml d. Rubbing Alcohol 0.87g/ml

20. I start with 10ml of water in a graduated cylinder. I add an object. The level now reads 26ml. What is the volume of the object? a. 10ml b. 26ml c. 36ml d. 16ml Which object has the greatest density? a. twenty kilograms of cement b. twenty kilograms of feathers c. twenty kilograms of paper clips d. twenty kilograms of plastic bottles A branch and a twig from the same tree fall in the creek. The branch will a. Float higher b. Float lower c. Won’t float d. Float exactly the same How does the volume of a liquid change when I place 7 cubic centimeter cubes in it a. The level doesn’t change b. The level drops 7ml c. The level rises 1ml d. The level rises 7ml

21. One example of changing a substance physically is a. burning paper. b. baking cookies. c. heating table sugar. d. blending a milkshake. One example of changing a substance chemically is a. filtering. b. burning wood. c. boiling water. d. crushing a can. A characteristic property that can help tell similar liquids apart is a. hardness. b. melting point. c. boiling point. d. smell. Why might you need to study at least two or three characteristics before you can accurately identify a substance? a. All substances have the same melting point. b. Many substances share melting points, boiling points, or other characteristic properties. c. All substances have different boiling points. d. All solids melt at 0ºC.

22. One example of a physical property is a. Permanent color change. b. Reactivity. c. pH (acid or base). d. Melting point. One example of a chemical property is a. melting. b. flammability c. boiling . d. crushing a can. One example of a physical change is a. The specific odor of vinegar. b. The density of water is 1 g/ml. c. Making a solution. d. Silver tarnishing. One example of a chemical change is a. Melting popsicles. b. Popping popcorn c. Freezing blueberries. d. Shredding paper.

23. A branch and a twig from the same tree fall in the creek. The branch will a. Float higher b. Float lower c. Won’t float d. Float exactly the same A change that alters the form of a substance without changing it into another substance is called a(n) a. physical change. b. chemical change. c. thermal change. d. energy change. A chemical change results in a. changes in state. b. different substances with different properties. c. no new substances. d. changes in pressure. In chemical reactions, the law of conservation of energy means that a. energy is always lost. b. energy is always gained. c. the total amount of energy stays the same. d. the total amount of energy before the reaction is less than the total amount of energy at the end of the reaction.

24. What is vaporization? a. a physical property b. a physical change c. a chemical property d. a chemical change What is density? a. a physical property b. a physical change c. a chemical property d. a chemical change What is melting point? a. a physical property b. a physical change c. a chemical property d. a chemical change What is condensation? a. a physical property b. a physical change c. a chemical property d. a chemical change

25. One example of changing a substance physically is a. burning paper. b. baking cookies. c. heating table sugar. d. blending a milkshake. One example of a physical property is a. Permanent color change. b. Reactivity. c. pH (acid or base). d. Melting point. A branch and a twig from the same tree fall in the creek. The branch will a. Float higher b. Float lower c. Won’t float d. Float exactly the same What is vaporization? a. a physical property b. a physical change c. a chemical property d. a chemical change

26. One example of changing a substance chemically is a. filtering. b. burning wood. c. boiling water. d. crushing a can. One example of a chemical property is a. melting. b. flammability c. boiling . d. crushing a can. A change that alters the form of a substance without changing it into another substance is called a(n) a. physical change. b. chemical change. c. thermal change. d. energy change. What is density? a. a physical property b. a physical change c. a chemical property d. a chemical change

27. A characteristic property that can help tell similar liquids apart is a. hardness. b. melting point. c. boiling point. d. smell. In chemical reactions, the law of conservation of energy means that a. energy is always lost. b. energy is always gained. c. the total amount of energy stays the same. d. the total amount of energy before the reaction is less than the total amount of energy at the end of the reaction. What is melting point? a. a physical property b. a physical change c. a chemical property d. a chemical change Why might you need to study at least two or three characteristics before you can accurately identify a substance? a. All substances have the same melting point. b. Many substances share melting points, boiling points, or other characteristic properties. c. All substances have different boiling points. d. All solids melt at 0ºC.

28. The can of diet coke floats while the can of regular coke sinks. Which physical property is being illustrated? a. Volume b. Mass c. Boiling Point d. Density The following units may be used to measure mass a. meters. b. liters. c. grams. d. pounds. The following tool is used to measure volume of a liquid a. Ruler. b. Graduated Cylinder. c. Triple Beam Balance. d. Scale. How would you calculate the density of an object? a. Add its weight to its volume. b. Divide its mass by its volume. c. Multiply its volume times its mass. d. Subtract its volume from its mass.

29. What is reactivity? a. a physical property b. a physical change c. a chemical property d. a chemical change What is mass? a. a physical property b. a physical change c. a chemical property d. a chemical change What is a rusting nail? a. a physical property b. a physical change c. a chemical property d. a chemical change What is a burning candle wick? a. a physical property b. a physical change c. a chemical property d. a chemical change

30. Sodium and chlorine form table salt, this is an example of a\an a. atom. b. element. c. mixture. d. compound. If I can physically separate a combination of substances, I know this is a\an a. element. b. compound. c. mixture. d. atom. 2H + O → H₂O This is an example of a\an a. element. b. atom. c. compound. d. mixture. This is a model of a\an a. compound. b. atom. c. mixture. d. element.

31. You place a cup half full of coke in a freezer along side a full cup of coke. What can you say about their freezing point? a. The half full cup of coke has a lower freezing point than the full cup of coke b. The half full cup of coke has a higher freezing point than the full cup of coke c. The half full cup of coke has a freezing point equal to the full cup of coke d. The half full cup of coke has a freezing point half of the full cup of coke Which method would you use to separate sand from pebbles? a. Shake through a screen b. Pick the pebbles out by hand c. Stir in water, pour through a filter, let the water evaporate d. Use a magnet Which method would you use to separate sand and salt? a. Shake through a screen b. Pick the sand out by hand c. Stir in water, pour through a filter, let the water evaporate d. Use a magnet Which method would you use to separate iron filings and salt? a. Shake through a screen b. Pick the sand out by hand c. Stir in water, pour through a filter, let the water evaporate d. Use a magnet

32. What is a burning candle wick? a. a physical property b. a physical change c. a chemical property d. a chemical change This is a model of a\an a. compound. b. atom. c. mixture. d. element. Which method would you use to separate iron filings and salt? a. Shake through a screen b. Pick the sand out by hand c. Stir in water, pour through a filter, let the water evaporate d. Use a magnet The following units may be used to measure mass a. meters. b. liters. c. grams. d. pounds.

33. The can of diet coke floats while the can of regular coke sinks. Which physical property is being illustrated? a. Volume b. Mass c. Boiling Point d. Density What is reactivity? a. a physical property b. a physical change c. a chemical property d. a chemical change Sodium and chlorine form table salt, this is an example of a\an a. atom. b. element. c. mixture. d. compound. You place a cup half full of coke in a freezer along side a full cup of coke. What can you say about their freezing point? a. The half full cup of coke has a lower freezing point than the full cup of coke b. The half full cup of coke has a higher freezing point than the full cup of coke c. The half full cup of coke has a freezing point equal to the full cup of coke d. The half full cup of coke has a freezing point half of the full cup of coke

34. What is a rusting nail? a. a physical property b. a physical change c. a chemical property d. a chemical change If I can physically separate a combination of substances, I know this is a\an a. element. b. compound. c. mixture. d. atom. Which method would you use to separate sand from pebbles? a. Shake through a screen b. Pick the pebbles out by hand c. Stir in water, pour through a filter, let the water evaporate d. Use a magnet Which method would you use to separate sand and salt? a. Shake through a screen b. Pick the sand out by hand c. Stir in water, pour through a filter, let the water evaporate d. Use a magnet

35. What is evaporation? a. a physical property b. a physical change c. a chemical property d. a chemical change What is freezing point? a. a physical property b. a physical change c. a chemical property d. a chemical change You place a cup half full of coke in a freezer along side a full cup of coke. What can you say about their freezing point? a. The half full cup of coke has a lower freezing point than the full cup of coke b. The half full cup of coke has a higher freezing point than the full cup of coke c. The half full cup of coke has a freezing point equal to the full cup of coke d. The half full cup of coke has a freezing point half of the full cup of coke A branch and a twig from the same tree fall in the creek. The branch will a. Float higher b. Float lower c. Won’t float d. Float exactly the same

36. Glue stirred into water results in a\an a. atom. b. element. c. mixture. d. compound. A chemical change differs from a physical change because in a chemical change a substance a. changes color. b. changes shape. c. changes into another substance. d. changes into another state of matter. Glue solution stirred with borax solution results in a\an a. atom. b. element. c. mixture. d. compound. When water was added to the oil, the water sank to the bottom of the beaker. Which physical property is being illustrated? a. Volume b. Mass c. Boiling Point d. Density

37. Which model illustrates conservation of mass a. b. c. d. Which process can separate the sugar from the water in a sugar water solution? a. melting b. freezing c. straining d. evaporation What always happens as a result of a chemical reaction? a. New substances are produced. b. Two or more substances are combined. c. The same substance appears in a different form. d. One substance breaks into two or more different substances. 115°F is the boiling point of coke. I place 30ml of coke on one hotplate and 60ml of coke on another hotplate. The 60ml of coke boiled at 115°F. The 30ml of coke boiled at a. 115°F. b. 100°F. c. 130°F. d. 75°F.

38. I have four white substances. When I add vinegar, one of the substances fizzed. I now know that substance is a. Salt. b. Corn starch. c. Flour. d. Baking soda. The chemical formula for water is H2O. This information tells you that water is a. a mixture. b. a solution. c. an element. d. a compound. A student has a mixture of small pieces of iron filings and sand. How can the student separate the mixture? a. The student can heat the mixture to separate it. b. The student can use a magnet to separate the mixture. c. The student can use a litmus test to separate the mixture. d. The student can dissolve the mixture in water to separate it. Which process will completely separate sand and water? a. Use a screen. b. Use a colander. c. Use a magnet. d. Use a filter.

39. Solutions are a type of a. atom. b. element. c. mixture. d. compound. Which statement describes a chemical property of an object? a. Iron is malleable. b. Water is colorless. c. Wood is flammable. d. Copper is a conductor. I have four white substances. When I add iodine, one of the substances changed colors. I now know that substance is a. Salt. b. Corn starch. c. Flour. d. Baking soda. I have four white substances. While testing, I observed fizzing and a color change. These are a. Atoms b. Of no value c. Physical changes d. Chemical changes

40. I have four white substances. While testing, I observed color, odor, state of matter, and solubility. These are examples of a. Physical changes b. Chemical changes c. Physical properties d. Chemical properties 2H + O → H₂O This shows a. A solution. b. A mixture. c. Conservation of mass. d. A suspension. Rust on a nail is an example of a\an a. atom. b. element. c. mixture. d. compound. Borax stirred into water is an example of a\an a. atom. b. element. c. mixture. d. compound.

41. Which physical property of salt did we use to separate it from the sand? a. Color – it is white b. Density – it is more dense than water c. Solubility – it dissolves in water d. Size – the particles are larger than the water particles The simplest way to find the volume of a marble is to a. Use a triple beam balance b. Use a tape measure around the marble c. Use the property of water displacement d. Use a mathematical formula The simplest way to find the mass of a rock is to a. Use a triple beam balance b. Use a tape measure around the rock c. Use the property of water displacement d. Use a mathematical formula The investigation with the plastic bottle, baking soda, vinegar, balloon and triple beam balance showed a. Physical properties b. Physical changes c. A mixture d. Conservation of mass

42. The investigation with the sand, salt, and iron filings showed a. A chemical reaction can be separated into individual substances b. A compound can be separated into individual substances c. A mixture can be separated into individual substances d. An element can be separated into individual substances The white corn starch and brown iodine turning a purple color illustrated a. A chemical reaction b. A compound separated into individual substances c. A mixture separated into individual substances d. A physical change In the “Density Dilemma”, density was needed a. To practice our division skills b. To be able to identify which crown was gold c. To create a compound d. To create a mixture When burning a kerosene lamp, an example of a physical change might be a. The wick is burning b. Light is produced c. The glass dome warms d. Carbon dioxide is produced

43. When the water reached the tablet, fizzing was observed. Which property is being illustrated? a. Volume b. Mass c. Physical d. Chemical Cornstarch and water make oobleck. This is an example of a. a chemical change b. a chemical reaction c. a physical change d. a mistake Solubility is a term used when talking about a substance that will a. boil b. dissolve c. evaporate d. condense How can the solubility of a solution be decreased? (Make it more difficult to dissolve a substance) a. You can heat the substance. b. You can stir the solution. c. You can crush the substance. d. You can cool the liquid.

44. Which physical property of sand allows it to be separated from the pebbles when they are mixed together? a. Magnetic b. Density c. Solubility d. Size Which physical property of the foam beads allows it to be separated from the marbles when they are mixed together? a. Magnetic b. Density c. Solubility d. Size Which physical property of the paper clips allows it to be separated from the plastic cubes when they are mixed together? a. Magnetic b. Density c. Solubility d. Size Which one of the following do I use to decide how to separate mixtures? a. Physical changes b. Chemical changes c. Physical properties d. Chemical properties

45. Glue stirred into water results in a\an a. atom. b. element. c. mixture. d. compound. Borax stirred into water results in a\an a. atom. b. element. c. mixture. d. compound. Salt stirred into water results in a\an a. atom. b. element. c. mixture. d. compound. Corn starch stirred into water results in a\an a. atom. b. element. c. mixture. d. compound.

46. How would you calculate the density of an object? a. Divide its weight by its volume. b. Divide its mass by its volume. c. Multiply its volume times its mass. d. Multiply its weight times its mass. The SI unit for mass is the a. ounce. b. pound. c. gram. d. liter. Substances formed from chemical combinations of two or more different elements are called a. elements. b. compounds. c. mixtures. d. solutions. Which type of matter consists of two or more substances that are NOT chemically combined? a. elements b. compounds c. mixtures d. atoms

47. The measurement of how much mass is contained in a given volume is called a. weight. b. melting point. c. boiling point. d. density. A solid is a state of matter that has a(n) a. indefinite volume and an indefinite shape. b. definite volume and a definite shape. c. definite volume and an indefinite shape. d. indefinite volume and a definite shape. Which of the following is the smallest metric unit a. milli. b. centi. c. kilo. d. deci. The space an object occupies is measured by a. Volume. b. Temperature. c. Mass. d. Time.

48. I have 5 cubic centimeter cubes and an equal sized rectangular prism. The rectangular prism will have a a. Greater volume. b. Equal volume. c. Less volume. d. No volume. In which state of matter are particles packed tightly together in fixed positions? a. gas b. solid c. liquid d. compound When I add a solid to a liquid, the level of the liquid rises – this is called a. difference. b. differential. c. displacement. d. diagnosis. How does the volume of a liquid change when I place 5 cubic centimeter cubes in it a. The level doesn’t change b. The level drops 5ml c. The level rises 1ml d. The level rises 5ml

49. Johnny was investigating changes in matter by testing interactions with different materials. Which process will result in a product with new CHEMICAL properties? a. Cutting a piece of cardboard b. Breaking a rock c. Popping popcorn d. Mixing sugar and water Based on the law of conservation of mass, which of these is a TRUE statement about chemical changes? a. The mass of the products is always greater than the mass of the materials. b. The mass of the products is always less than the mass of the materials. c. The mass of the products is neither less or greater than the mass of the materials. d. The mass of the products can be either less or greater than the mass of the materials. Which of the following is an example of the formation of a MIXTURE? a. Rust forming on an iron nail b. Sugar crystals dissolving in water c. Sodium and chlorine forming table salt d. Hydrogen and oxygen reacting to produce water

50. Janice’s little brother mixed together 400 grams of sand and about a liter of water. Which of the following methods would be the best way to COMPLETELY separate the mixture? •  a. She can use a screen. • b. She can use a magnet. • c. She can use filter paper. • She can separate it by hand.