Answer:

7. What happens when you dip a metal spoon in a cup of hot coffee?

•The outer layer would become cooler,and lose heat more slowly,while the center remained hot.

8. How does heat move from one object to another?

•Heat can travel from one place to another in three ways: Conduction, Convection and Radiation. Both conduction and convection require matter to transfer heat.

9. How do water molecules move when boiled?

•When water is boiled, the heat energy is transferred to the molecules of water, which begin to move more quickly

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Answer:
7. If the metal spoon is not hotter than the coffee AND the spoon sticks up taller than the surface of the coffee AND the air surrounding the coffee cup and spoon is cooler than the coffee, THEN a metal spoon can act as a heat sink and help cool a cup of coffee

8.Heat can be transferred in three ways: by conduction, by convection, and by radiation. Conduction is the transfer of energy from one molecule to another by direct contact. … Convection is the movement of heat by a fluid such as water or air. … Radiation is the transfer of heat by electromagnetic waves.
9.When water is boiled, the heat energy is transferred to the molecules of water, which begin to move more quickly. Eventually, the molecules have too much energy to stay connected as a liquid. When this occurs, they form gaseous molecules of water vapor, which float to the surface as bubbles and travel into the air