Melt Down! Lab

What type of thermal energy transfer primarily occurs between the petri dish and the ice cube?

• Conduction

• Convection

• Radiation

• Evaporation

What role does the hot water in the cups play in the experiment?

• It absorbs cold energy from the ice cube

• It acts as a heat source, transferring energy to the system

• It prevents the ice from melting

• It acts as a heat source, absorbing energy from the system

Where does the thermal energy go as the ice melts?

• It is destroyed

• It is absorbed by the ice

• It turns into cold energy

• It is reflected by the petri dish

What happens to the kinetic energy of the hot water molecules as heat is transferred to the system?

• It increases

• It decreases

• It remains the same

• It changes randomly

Fill in the blank: The best thermal conductor in the experiment is _______.

• Styrofoam

• Tin foil

• Water

• Ice

Fill in the blank: The presence of a the foil & the styrofoam on top of the cup_______ heat transfer to the plastic petri dish ice.

• Increases

• Slows down

• Has no effect on

Fill in the blank: The kinetic energy of water molecules in the ice_______ as heat is transferred.

• Increases

• Decreases

• Remains the same

• Changes randomly

How do the water molecules in the ice cube compare to the water molecules in the hot water?

• They move faster in the ice cube

• They move slower in the ice cube

• They have the same movement in both states

• They stop moving in the ice cube

In what direction does thermal energy flow in this experiment?

• From the ice to the petri dish

• From the petri dish to the ice

• From the air to the ice

• From the petri dish to the hot water

11. When will the energy transfer between the petri dish and the ice cube stop?
    

• 11. When the ice completely melts

• 11. When the ice and petri dish reach thermal equilibrium

• 11. When the water in the cup evaporates

• 11. When more ice is added