1. What is light?
2. How does light travel?
3. Name the sources of light.
4. What are the three different types of material that can allow light
to pass through?
5. Draw a periscope to show show how light travels.
6. What is heat?
7. What is the difference between heat and temperature?
8. How to measure temperature?
9. Draw a clinical thermometer and label its parts.
10. What happens when matter is heated/cooled?
11. Show an example of question 10.
12. How does heat flow?
Answers.
1. Light is a form of energy.
2. Light travels in straight lines.
3. Sun, fireflies, light bulb.
Moon is not a light source. It only reflects light from the sun.
4. Opaque, transparent, and translucent.
5.
6. Heat is a form of energy.
7. Temperature is a measure of degree of hotness of an object. Heat is a form of energy.
8. Thermometer.
9. Constriction must be drawn, bulb and glass tube.
10. It expands when heated and contracts when cooled.
11. Heat flows from a hotter object to a cooler object.
