1. Scientific knowledge changes with ____________ evidence or new interpretations.

1. new • 1. Scientific knowledge changes with ____________ evidence or new interpretations. •  2. Most scientific questions being investigated today span different fields of ____________. •  3. A scientist would reject a scientific theory if new _______________is found to contradict it. • A _________________ is a statement that describes what scientists expect to happen • every time under a particular set of conditions. • A group of parts that work together to carry out a function is called a(n) ____________. • Scientists have developed models for the structure of atoms because atoms are too • ________________ to study directly. • Joe decides that cereal is the best breakfast because he thinks cereal tastes better than • other breakfast foods. Joe is being _______________. • 8. _________________ observations are observations that deal with a number or amount. • When scientists put things into categories or group together items that are alike in • some way, they are ______________ them. science evidence scientific law system small subjective Quantitative classifying

2. When scientists create a representation of a complex process, they are making • ____________. •  11. The SI unit of time is the _____________. • 12. ______________ measures the force of gravity on an object and ______________ measures • the amount of matter an object contains. •  13. The closeness of a measurement to its true value is its ___________________. •  14. If you were to get the following data from an experiment what could you say about that • data? • 34.0 cm, 34.1 cm, and 34.2 cm The actual value is 39.0 cm. • They are __________ but not ___________________. • The significant figures in a measurement include the digits that have been measured • _______________, plus one digit whose value has been ________________. •  16. A _______________ graph shows how the responding variable changes in response to the • manipulated variable. •  17. If a graph shows no identifiable trends then, there is no relationship between the • ___________________. models second mass Weight accuracy accurate precise exactly estimated line variables

3. A line graph in which the data points do not fall along a straight line is called a • ____________ graph. •  19. To find out why bread left on the kitchen counter eventually molds is an example of • using _________________inquiry. •  20. During an experiment, the ______________ must be controlled so that researchers can • draw a logical conclusion from the experiment. •  21. When you make a possible explanation for a set of observations you are formulating a • ____________________. •  22. You are investigating whether robins prefer one type of bird seed over any other type. • Your independent variable is the type of bird seed used. The dependent variable • should be the ___________________ of robins visiting your feeder. • In this set of data: 24, 21, 31, 24, 25, the number 24 is the __________________. • You are investigating the numbers and types of birds in your neighborhood. If you watch a • bird feeder to see which birds appear, you are ____________________. •  25. When you run, your heart receives a signal to pump faster. In your body's circulatory • system, this signal is an example of ________________________. nonlinear scientific variables hypothesis number mode observing feedback

4. Drawing a network diagram to represent traffic flow would be an example of using • a ________________. • 27.  All substances are composed of particles called atoms. This statement is an example of a • scientific ___________________. • A scientific _______________ describes an observed pattern in nature without • attempting to explain it. •  29. Explaining or interpreting the things you observe based on reasoning from what you • already know is called ___________________. • Making a statement or claim about what will happen in the future based on past • experience or evidence is called ____________________. • 31 You would use a _________________________ to measure the mass of an orange. •  32 You would use ______________________ to measure the volume of a small cardboard box. •  33. A balance measures __________. •  34. When scientists cannot obtain exact numbers, they often rely on a(n) _____________. model theory law inferring predicting triple beam balance cubic centimeter mass estimate

5. median • 35. The middle number in an ordered set of data is the _____________. •  36. A line graph shows how the _______________ variable changes in response to the • ________________ variable. •  37. During a controlled experiment, if you purposely change the temperature to test a • hypothesis, the temperature is called the ___________________variable. •  38. The fossils of dinosaurs of the same species were found in Siberia and in England. • Determining that the rocks where each of these fossils were found are approximately • the same age is an example of a_________________________. •  39. Sandra went on 15 kilometer bike ride. How many meters did she ride? _______________ •  40. Using one or more of your senses to gather information is called _________________. • Callie notices that every time she uses a certain bird food in her bird feeder, blue jays • land on the feeder. She concludes that blue jays prefer this food more than other birds do. • Callie is using _______________ reasoning. •  42. If you conduct an experiment and draw conclusions that are based on your beliefs • rather than the facts, you are using ______________________________ reasoning.  dependent independent independent scientific explanation 15,000 meters observing inductive subjective

6. 10 • The metric system of measurement is based on the number _______. •  44. The graduated cylinder is used to measure ______________. • The most appropriate unit of measure to measure the length of an ant would be the • ______________________. • The most appropriate unit of measure to measure the distance from New Orleans • to Baton Rouge would be ________________. • 47 The basic unit of length in the metric system is the ______________. •  48. There are ____________ meters in a kilometer. • 49. The amount of space an object takes up is its _______________. • To calculate the density of an object, you would divide its ____________ by its • _________________. •  51. The official SI unit of temperature is ______________. • 52. If a shoe box measures 6 cm high, 7 cm wide, and 20 cm long, its volume is ____________.. volume millimeters kilometers meter 1,000 volume mass volume Kelvin 840 cm³

7. 2.7 g/cm³ 53. A metal washer has a mass of 0.27 g and a volume of 0.1 cm3. Its density is _________.  54. If you add a mass of 3.7 g to a mass of 9.495 g, the sum with the correct number of significant digits is ___________________. 55. To determine how close to the true value an experimental value is, you would use a _______________________________________.  56. The ________________ axis of a graph runs left to right.  57. _______graphs said to be powerful tools because they show how different sets of data are related.  58. A scientific ______________ must be able to be tested. 59. A variable that is purposely changed to test a hypothesis is a(n) _______________ variable. 60. ___________________ have some electrical properties and some magnetic properties?  61. Electromagnetic waves can transfer energy without a _________________. 13.2g percent error calculation horizontal Line hypothesis independent Electromagnetic waves medium

8. The range of electromagnetic waves placed in a certain order is called the • ________________________________. • 63. The _____________________ of light helps explain the photoelectric effect. •  64 Light that has passed through a polarizing filter is called _________________________. • An electromagnetic wave from the sun travels through space at the speed of • _______. • 66. A packet of light energy is called a ___________. • 67. In a vacuum, all electromagnetic waves have the same ___________. • 68. The electromagnetic waves with the highest frequencies are called _________________. •  69. FM signals travel as changes in the _________________ of the wave. • Electromagnetic waves that have the longest wavelengths and lowest frequencies are • ___________________. • 71. Visible light has a __________frequency than infrared rays.  electromagnetic spectrum particle model polarized light light photon speed gamma rays frequency radio waves higher

9. Diffused reflection • 72. ____________________ occurs when parallel rays of light hit a rough or bumpy surface. •  73. When parallel rays of light hit a smooth surface you get _________________________. •  74. A plane mirror produces a ___________image that is upright. •  75. When the surface of a mirror curves inward, like the inside of a bowl, it is called a • ___________ mirror. •  76. A flat sheet of glass with a silver-colored coating on one side is a _________mirror. •  77. A ___________is an image of a distant object caused by refraction of light. •  78. When light passes from air into water the light _____________________. • 79. The bending of light rays as they enter a new medium is called ____________________. • Because the light rays never meet, a concave lens can produce only a _______________ image. • A curved piece of glass or other transparent material that is used to refract light • is called a(n) _______. regular reflection virtual concave plane mirage slows down refraction virtual lens

10. steel • Sound travels faster in ___________ than it does in air. • 83.Be able to identify the uses of the different waves and rays in the electromagnetic • spectrum. • 84. Be able to place the rays and waves of the electromagnetic spectrum in order from • lowest to highest frequency. • Be able to identify the independent and dependent variables in given experiments. • 86. The _______________variable is measured in a controlled experiment. dependent

11. amount of rainfall size of lemons A fruit grower in Florida wants to know if the size of lemons grown on his trees is affected by the amount of rainfall. Independent Variable_______________________________ Dependent Variable_________________________________ 2. An investigation was performed to see if the sprouting of corn is affected by the temperature of the soil. Independent Variable_______________________________ Dependent Variable_________________________________ temperature of soil number of corn sprouted

12. amount of exercise a person gets 3.Athletes wanted to know if the time it takes to run a kilometer depends on the amount of exercise a person gets. Independent Variable___________________________________ Dependent Variable____________________________________ 4. Sarah put 2 pellets of fertilizer on plant 1. She placed 3 pellets of fertilizer on plant 2. Then Sarah placed 5 pellets on plant 3. She wants to compare the heights of the plants two weeks from now. Independent Variable________________________________ Dependent Variable__________________________________ the time it takes to run a kilometer amount of fertilizer height of plants

13. amount of light shining on a plant 5. Charlie wanted to know if the amount of light shining on the plant affected the color of the leaves. One leaf received light for 2 hours a day. Another leaf received 6 hours of light a day. The third leaf stayed covered all day. Independent Variable_____________________________ Dependent Variable______________________________ 6. Mike wondered if 2 kinds of beans would sprout at the same time. He took 3 kidney beans and 3 lima beans and placed them in plastic bags with paper towels. The bags were put in a warm place. He observed the plants each day for a week. Independent Variable________________________________ Dependent Variable__________________________________ color if the leaves type of bean time plants take to sprout

14. mouse population number of owls 7. The Florida State Agriculture Department has been counting the number of owls in Clay County to see if the number of owls have any effect on the mouse population. Independent Variable___________________________ Dependent Variable____________________________ 8. The score on the final test in mathematics depends on the number of homework problems worked correctly. Independent Variable___________________________ Dependent Variable____________________________ number of homework problems worked correctly score on the final test in mathematics

15. amount of fertilizer 9. A farmer wanted to find out if more bushels of potatoes could be produced if the soil is fertilized more. Independent Variable______________________________ Dependent Variable________________________________ 10. A farmer wanted to do an investigation to see if keeping the lights on for different amounts of time each day affected the number of eggs that chicken lay. Independent Variable__________________________ Dependent Variable____________________________ number of potato bushels amount of time light is on number of eggs chicken lay