1. Unit 2: Thinking Like a Scientist
Theme 3: How Does Cooking Work?

2. The elephant gave off radiation waves when it got hot.
radiation- the process of giving off heat or energy in the form of invisible rays or waves
The elephant gave off radiation waves when it got hot.

3. transfer- to move it from one place to another
The passenger transferred from the plane to the car.

4. connect- to join or fasten two or more things together
The television must be connected to the computer in order to transmit the signal.

5. The mother reassured her child when she received a shot.
reassured- to make someone feel confident or confirm something is all right
The mother reassured her child when she received a shot.

6. ingredients– the parts of a mixture
Chefs use various ingredients when creating recipes.

7. scientific– to use facts and laws of science
The scientific method helps during science class.

8. conduction– the transfer of heat through a material
When the heat of a stove’s burner moves through a pot to the food inside, that is conduction occurs.

9. convection- the transfer of heat through air or a liquid
In a convection oven, hot air cooks the food.

10. chemical- how the basic elements of matter behave
In a chemical reaction, elements combine to form a new substance.

11. Water molecules condense to make rain.
molecules- the smallest particles into which a substance can be divided without changing it into a different substance
Water molecules condense to make rain.