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Matter Review

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  • Which best explains why melting ice is a physical change instead of a chemical change? A. It does not smell bad. B. It changes from a solid to a liquid. C. It does not form a new substance. D. It changes quietly with no loud sound.
    C. It does not form a new substance.
  • Which will most likely form during the condensation process?
    Clouds
  • James put some water in a pan. He put the pan on a stove and turned the stove on low. What will happen to the water?
    Water will evaporate
  • Max adds 250 g water and 250 g rice to a pot on a stove and covers the pot with a lid. The water boils and is absorbed by the rice. How much do the contents of the pot weigh after the rice finishes cooking? A. 250 g B. 400 g C. 500g D. 600g
    C. 500g
  • Which will most likely result in a new substance being formed? A. boiling water B. cutting paper C. lighting a match D. mixing water and clay
    lighting a match
  • Why are pots used for cooking made of metal?
    Metal is a good conductor
  • Ivy mixed 30 g of hot chocolate mix with 200 g of hot milk. She then added 5 marshmallows with a mass of 8 g each. Which best describes the mass of her hot chocolate? A. 235 grams B. 238 grams C. 270 grams
    C. 270 grams
  • A teacher adds 2 g of chalk to 25 g of vinegar in a tightly sealed jar. The chalk and vinegar react, and gas bubbles form. What is the total mass of the jar’s contents after the reaction takes place? A. 23 g B. 25 g C. 27 g D. 50 g
    C. 27 g
  • Which type of change occurs when the size, shape, appearance, or volume of a substance is changed without changing its composition?
    Physical
  • What is the original source of most of the energy that people use?
    Sun
  • Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?
    Convection
  • Why is copper often used to line the bottom of cookware?
    metal like copper is a good conductor
  • Which best explains why burning wood is a chemical change?
    New substance, heat, light, gas released
  • Kim lost her hammer outside. When she found it a few months later, some parts of the metal were covered with flaky, brown rust. Which type of change occurred when rust formed on the hammer?
    Chemical
  • Energy from the Sun changes a liquid to a gas by the process of
    Evaporation
  • Khalia had a cup of ice with a mass of 1,000 kg. After the ice melted, which is most likely the mass of the cup of water? A. 250 kg B. 500 kg C. 1,000 kg
    C. 1,000 kg
  • How does sitting in front of a fire most likely keep a person warm?
    radiation
  • Which of the following is an example of a chemical change? A. clouds forming B. sugar dissolving C. water freezing D. a candle burning
    D. a candle burning
  • Jacob cuts a one-pound block of cheese into four slices. What is the weight of the cheese after it is sliced? A. 1/4 pound B. 1 pound C. 2 pounds D. 4 pounds
    B. 1 pound
  • Bob puts 200 grams of ice into a pitcher with 900 grams of water. He comes back later to find that the ice has melted in the water. How many grams of water does Bob now have in the pitcher? A. 200 g B. 700 g C. 900 g D. 1100 g
    D. 1100 g
  • How does the sun warm a person’s face?
    Radiatiion
  • How does heat energy from the Sun reach Earth?
    Radiation
  • Which best describes the transfer of heat due to the movement of gases or liquids?
    Convection
  • Which explains how most metals react to being heated?
    Expand
  • Which process of the water cycle returns condensed water to the earth’s surface?
    Precipitation