Light

1. properties of light

1.1. light travels in a straight line

1.2. light can be transmitted

1.3. light can be absorbed

1.4. light can be reflected

2. sources of light e.g.

2.1. sun

2.2. star

2.3. firefly

3. the MOON does NOT give off light

4. the speed of light is 300 000km per second which is 1800000km per minute!