Light

I. Fill in the blanks to complete sentences below.

1. Light propagates or spreads in ______________________.

2. Light travels in a ____________________ line.

3. An object is ___________________, when we can see easily through it.

4. An object is __________________, when we can see through it but not clearly.

5. An object is __________________, when we cannot see through it.

6. When the rays of light hit the mirror, it’s call _____________.

7. ___________________: It’s when light travels slowly in water.

8. ____________________: It’s when white light passes through a prism, and colors separate.

9. ____________________: It’s a group of colors that comes from white light.

10. ______________: It’s a transparent body with a flat surface.