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Unit 1 Review

Mr. Thomas. Unit 1 Review. I. Lab Safety (textbook pp. 31-35). 1. It is important to wear safety goggles when you are using glassware and chemicals . I. Lab Safety (textbook pp. 31-35). 2. What should you do if you break a test tube with a chemical in it?

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Unit 1 Review

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  1. Mr. Thomas Unit 1Review

  2. I. Lab Safety (textbook pp. 31-35) 1. It is important to wear safety goggles when you are using glassware and chemicals.

  3. I. Lab Safety (textbook pp. 31-35) 2. What should you do if you break a test tube with a chemical in it? Stay away from the area and tell your teacher.

  4. I. Lab Safety (textbook pp. 31-35) 3. Draw the lab safety symbols for wearing goggles, using sharp objects, and working with flames. Goggles Sharp Object Flames

  5. II. Metric Measurement 1. Graduated cylinders and beakers have marks on their sides to measure the volume of liquids. Beaker Graduated Cylinder

  6. II. Metric Measurement 2. A triple beam balance measures the mass of an object.

  7. II. Metric Measurement 3. The formula for measuring density is

  8. II. Metric Measurement 4. The density of an object with a mass of 20mg and a volume of 4ml is 20mg divided by 4ml = 5 mg/ml

  9. II. Metric Measurement 5. The density of an object with a mass of 10g and a volume of 2ml is 10g divided by 2ml = 5g/ml

  10. II. Metric Measurement 6. The density of an object with a mass of 36kg and a volume of 6 liters is 36kg divided by 6l = 6kg/l

  11. II. Metric Measurement 7. All objects will float in liquids more dense than themselves.

  12. III. KEY TERMS 1. Mass: the amount of matter in an object.

  13. III. KEY TERMS 2. Volume: the amount of three-dimensional space occupied by a liquid, solid, or gas.

  14. III. KEY TERMS 3. Grams: the Metric unit used to measure mass.

  15. III. KEY TERMS 4. Manipulated Variable: the one variable that is changed in an experiment.

  16. III. KEY TERMS 5. Responding Variable: the variable that reacts or responds to the manipulated variable in an experiment.

  17. III. KEY TERMS 6. Control: variables that are NOT changed in a CONTROLLED experiment.

  18. III. KEY TERMS 7. Hypothesis: a possible explanation for an observation or scientific problem. It must be testable.

  19. III. KEY TERMS 8. Radiation: the direct transfer of thermal energy (heat) through space by electromagnetic waves.

  20. III. KEY TERMS 9. Conduction: the direct transfer of thermal energy (heat) through objects or substances touching each other.

  21. III. KEY TERMS 10. Convection: the transfer of thermal energy (heat) by the movement of a fluid.

  22. III. KEY TERMS 11. Density: the amount of mass of a substance in a given volume (space). Also defined as mass per unit volume.

  23. IV. SCIENTIFIC INQUIRY 1. A hypothesis must be testable in order to carry out an investigation.

  24. IV. SCIENTIFIC INQUIRY 2. Write a hypothesis to explain which will soak up more water, sandstone or shale. It is my hypothesis that sandstone will soak up more water than shale. It is my hypothesis that shale will soak up more water than sandstone.

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