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1 Matter Test 1 INSTRUCTIONS Please complete this assessment on your own. Answer each item by clicking on the correct choice, then go on to the next item. 1) The process that includes energy supplied by the sun, water evaporating from the earth's surface, and rain is known as. 1. A) the weather cycle 2. B) the water cycle 3. C) the seasonal changes 4. D) the climate system 2) A piece of wood burns in a fire and forms ashes. This chemical change is. 5. A) only a mixture 6. B) actually a physical change 7. C) easy to reverse 8. D) difficult to reverse 3) A slow chemical change is. 9. A) chalk dust that collects on a ledge 10. B) a paper that is cut 11. C) a match that is burning 12. D) an iron bar that is rusting

2 4) Which chemical change is difficult to reverse? 13. A) an iron bar rusts 14. B) ice melts 15. C) sand is mixed with salt 16. D) sugar dissolves in water 5) The statue of Liberty was made of shiny, orange-brown copper. The metal has interacted with carbon dioxide and water over the years to form copper carbonate, and has made Lady Liberty green over time. The copper changing from orange-brown to green is an example of 17. A) inertia. 18. B) a physical change. 19. C) density. 20. D) a chemical change. 6) What heat source do plants use to photosynthesize and make chemical changes that make food? 21. A) lightning 22. B) lava 23. C) fire 24. D) sun

3 7) In a chemical change 25. A) the process results in a different substance. 26. B) there is always a change in color. 27. C) one substance always becomes smaller than it was. 28. D) burning always takes place. 8) A change in matter that produces a new compound with different properties from the original is a(n). 29. A) physical change 30. B) chemical change 31. C) reactant 32. D) product 9) Barry bought a lightstick at the circus. He shook the tube and heard liquid move inside of it. Next, he bent the tube until he felt a crack inside the tube. Then, Barry shook the tube again. The lightstick began to glow. What did Barry just do? 33. A) Barry caused a chemical change by mixing the chemicals inside the tube until light energy was released. 34. B) Barry caused a physical change by shaking the tube until the lightstick began to glow. 35. C) He created a new atom by heating the lightstick. 36. D) He dissolved the tube of the lightstick from the heat of the glow.

4 10) Which of the following is not evidence of a chemical change? 37. A) forms a completely new substance 38. B) changes state of matter 39. C) gives off an odor 40. D) cannot be easily reversed 11) All of the following are physical changes except 41. A) ice melting. 42. B) plaster hardening. 43. C) paint drying. 44. D) rocket fuel burning. 12) Which of the following aspects of weather can be linked to the water cycle? 45. A) evaporation and condensation 46. B) precipitation and lightening 47. C) condensation and thunder 48. D) thunder and lightening 13) Food is digested in your stomach. This is an example of a, which is difficult to reverse. 49. A) physical change 50. B) chemical change 51. C) mixture 52. D) solution

5 14) The class made silly putty to sell as a fund raiser. They mixed borax, glue, and water. This demonstrated a. 53. A) physical change 54. B) chemical change 55. C) color change 56. D) state change 15) What is a chemical change? A chemical change is when. 57. A) substances with different properties form a new substance 58. B) substances with different properties keep their same properties 59. C) a mixture occurs between two or more substances 60. D) a solid dissolves into a liquid 16) Chemical changes to matter can be produced by the matter. 61. A) creating 62. B) heating 63. C) destroying 64. D) bending 17) Calcium chloride is a metal salt in fireworks. The fireworks also have other chemicals like nitrates. What happens to the calcium chloride and nitrates after you burn the fuse of a firework? 65. A) The nitrate bonds with more oxygen from the air and the calcium chloride remains stable. 66. B) The calcium chloride remains as a salt and the nitrate releases oxygen. 67. C) The two absorb the heat from the fuse and become a liquid. 68. D) The two combine and release light and heat energy.

6 18) Why do we use heat to cook raw meat? We use heat to cook raw meat to that make the meat safe to eat. 69. A) grow more bacteria 70. B) make physical changes 71. C) make chemical changes 72. D) increase cells 19) Water on Earth moves and changes form. Where does the energy for that process come from? 73. A) air 74. B) ocean 75. C) sunlight 76. D) inside the Earth 20) What happens in order for water vapor to become liquid water or ice? 77. A) cooling 78. B) warming 79. C) boiling 80. D) no change in temperature 21) What happens to water vapor as it cools? As it cools water vapor changes from. 81. A) gas to liquid 82. B) liquid to gas 83. C) solid to gas 84. D) solid to liquid

7 22) What does the term hydrosphere refer to? 85. A) air 86. B) rock 87. C) soil 88. D) water 23) A key feature of the water cycle is. 89. A) oxygen 90. B) radiation 91. C) precipitation 92. D) carbon dioxide 24) What is precipitation? Precipitation is. 93. A) water vapor heating and rising 94. B) water vapor cooling and becoming clouds 95. C) liquid or solid water suspended in the air 96. D) liquid or solid water falling from the air 25) Which one is the fastest chemical change? 97. A) liquid gold becoming a solid ring 98. B) an ice cube melting 99. C) a match burning 100. D) an iron bar rusting

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