Lesson 30 Science Vocabulary

Energy Conversion

1. Energy comes in many forms.

2. Changing energy from one form into another is a very important part of our life.

3. In this activity, the string absorbed light energy from the sun.

4. Food providing energy for exercise is an example of energy changing forms.

5. A material that can absorb and release light is called phosphorescent.

6. Safety clothing for people who work at night would be a good use for phosphorescent material.

7. It was important to begin this activity be placing the string in a dark are to be certain the string was not absorbing or releasing light energy.

8. We had to place the string in direct sunlight to allow it to absorb light energy.

9. Recharging a cellular phone battery is an example of transferring energy from one place to another.

10. Scientists call a material “phosphorescent” if it can absorb and release light.