Kelly

media type="custom" key="13359732"

media type="custom" key="13361374"

1) **What is light?** The natural agent that stimulates sight and makes things visible.
 * Research Questions:**

2) The sun
 * What is our main source of natural light?**

3) **What are other sources of light?** -Skylight -Moonlight -Candlelight -Lightening

4) **List as many artificial (man made) light as you can:** -Incadescent Bulb -Halogen Lamp -Photoflood Light -Xenon Light -Fluroscent Lamps -Mecury-vapour Lamps -Sodium-vapour Lamps -Torches

5) **How fast does light travel?** It travels at the speed of 300, 000 kilometres per second

6) **How long does it take for sunlight to reach the Earth?** It takes 500 seconds which is 8 minutes and 20 seconds

7) **What is the difference between reflection and refraction?** Reflection is a 'mirror-like' representation of an object's image being bounced back from another surface. Refraction is and object's visual proportion being distorted or refined when passing through one state to another through an angle

8) **Who invented the first lightbulb? When?** The first lightbulb was made by Humphry Davy, in 1800

9) **Light travels in (curved/straight) lines:** Mainly straight lines

a) Why is light so important to **survival** on Earth? -So you could see the way you are walking or what you are doing -Plants need to grow with the light shining on them
 * Thinking Questions:**