Heating and Cooling Concepts

The video tutorial covers exercise 3.4 on heating and cooling. It begins by asking viewers to identify materials in a picture that are affected by heat. The tutorial explains how heat can change materials, such as melting wax, and how cooling can turn liquids into solids, like water into ice. Key vocabulary words such as heat, melt, liquid, ice, cool, and solid are introduced and spelled out for learning.

What is the main focus of the introduction section in the video?

• Discussing the history of heating

• Identifying materials that can be changed by heat

• Describing the properties of water

• Explaining the process of cooling

What happens to wax when it is exposed to a hot flame?

• It melts

• It evaporates

• It turns into gas

• It becomes colder

What change occurs when water is placed in a freezer?

• It turns into steam

• It becomes a liquid

• It evaporates

• It changes to ice

Which of the following is a vocabulary word related to heating and cooling?

• Condense

• Freeze

• Melt

• Evaporate

What is the correct spelling of the word that describes the process of turning a liquid into a solid?

• H-e-a-t

• S-o-l-i-d

• C-o-o-l

• M-e-l-t