1) Hannah is heating 400 milliliters of water to make pasta. As she watches, the amount of water in the pot reduces to 300 milliliters. What happened to the water. a) Some of the water froze. b) Some of the water condensed. c) Boiling caused the water to become gas. d) Heating caused the water to leak from the pan. 2) Which of the following describes the temperature at which water changes from a solid to a liquid? a) dew point b) boiling point c) melting point d) condensation point 3) Which of the following describes the temperature at which water changes from a liquid to a gas? a) dew point b) boiling point c) melting point d) condensation point 4) Which of the following describes the temperature at which water changes from a gas to a liquid? a) dew point b) boiling point c) melting point d) condensation point 5) Which diagram is the best model of particles in liquid water? a) A b) B c) A and C d) B and C 6) Which is the BEST definition of matter? a) Matter is anything that is a solid. b) Matter is anything that can be observed. c) Matter is anything used in an investigation. d) Matter is anything that has mass and takes up space. 7) What is mass? a) the amount of stuff in an object b) the size of something c) anything that takes up space d) the shape of something 8) What happens when a solid dissolves in a liquid? a) The solid and liquid disappear. b) The matter that made up the solid no longer exists. c) The tiny particles that make up the liquid become solid. d) The tiny particles that make up the solid become evenly mixed in the liquid. 9) Which is a process by which a chemical change occurs? a) evaporation b) state change c) chemical reaction d) condensation 10) Which statement ALWAYS describes the result of a chemical reaction? a) There is a notable change in mass. b) New materials with new properties form. c) Materials change from a liquid to a solid. d) Materials change from a solid to a liquid 11) Does the weight of a cup of water change when it is frozen? a) Yes, the weight of a material changes when it undergoes a physical change b) Yes, the weight of a material changes when it undergoes a physicla change. c) No, the weight of a material does not change when it undergoes a physical change. d) No, the weight of a material does not change when it undergoes a chemical change. 12) Tonya mixes 10 grams of sugar in 150 grams of water. What is the mass of the mixture? a) less than 140 grams b) 140 grams c) 160 grams d) more than 160 grams 13) Alicia said that the wind moving leaves on a tree is evidence that matter is made of particles too small to be seen. Which statement BEST explains whether she is correct or not? a) She is not correct because air can be seen. b) She is not correct because a tree can be seen. c) She is correct because a tree is made of particles that cannot be seen. d) She is correct because the air is made of particles that cannot be seen. 14) What does the diagram model? a) how a balloon rises b) empty space in matter c) air particles in a balloon d) a balloon with small balls in it 15) What does the diagram provide evidence for? a) Gases are mostly empty space. b) Gases are lighter than air. c) Matter can float in empty space. d) Matter is made of particles too small to be seen. 16) Which of the following properties can be used to identify materials? a) color and magnetism b) mass and volume 17) Which statement best explains whether cooking eggs results in a chemical or physical change? a) It is a chemical change because heat is applied during the process. b) It is a chemical change because a new substance with different properties forms. c) It is a physical change because there are eggs and vegetables before and after cooking. d) It is a physical change because the eggs change state from a liquid to a solid. 18) Which of the following are examples of evidence for a chemical reaction? a) phase change and increase in temperature b) bubbles and heat production 19) Hugo is making brownies. The recipe calls for 170 grams of melted chocolate. Hugo uses a scale to measure 170 grams of chocolate. Then he heats the chocolate until it melts. Which statement best explains whether Hugo has the right amount of chocolate? a) The amount is correct because there is a chemical change when chocolate melts. b) The amount is correct because the mass does not change when the chocolate melts. c) The amount is not correct because some of the chocolate will evaporate when it melts. d) The amount is not correct because the chocolate gains mass when it melts and spreads. 20) What do the tiny spheres in the picture model? a) little rubber balls b) forms of energy that are invisible c) particles of matter that are too fast to be seen d) particles of matter that are too small to be seen 21) What is the best description of the matter in the cups? a) Cup 1 and Cup 2 both contain gases b) Cup 1 and Cup 2 both contain liquids. c) Cup 1 contains gas and Cup 2 contains a solid d) Cup 1 contains a liquid and Cup 2 contains a solid. 22) Which sentence describes the tiny spheres in Cup 1 and Cup 2? a) The particles in Cup 1 vibrate but the particles in Cup 2 do not. b) The particles in Cup 1 have less mass than the particles in Cup 2. c) The particles in Cup 1 move more freely than the particles in Cup 2. d) The particles in Cup 1 are made of a different type of matter than the particles in Cup 2. 23) Beth placed 100 grams of ice in a cup. She sealed the cup and put it on a sunny windowsill. After 3 days she measured the mass of the water in the cup. What is the mass of water left in the cup? a) It is 100 grams. b) It is less than 100 grams. c) It is more than 100 grams. d) It depends on how warm the air in the room is. 24) Beth placed 100 grams of ice in a cup. She sealed the cup and put it on a sunny windowsill. After 3 days she measured the mass of the water in the cup. Which Statement explains what would happen if Beth did not seal the cup? a) Water vapor in the air would condense, making the mass of water in the cup lower.  b) Some water in the cup would evaporate, making the mass of water in the cup lower. c) Water vapor in the air would condense, making the mass of water in the cup greater. d) Some water in the cup would evaporate making the mass of water in the cup greater.

Unit 1 Physical Science

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