1. The Lighter Side of Life

2. Light Energy manmade (light bulbs, flashlights)
natural (solar energy from the sun)
Does not cause pollution

3. Light Rays travels in a ray of energy a ray is a thin beam of energy
travels in a straight line

4. Light can travel through…..
empty space (outer space)
gases (air)
some liquids
Water
Coke
Sprite
Milk
some solids

5. Light goes in a STRAIGHT line
but you can cause it to change direction:
Reflects or reflection (bounces off)
tinted sunglasses mirror disco ball mirror

6. A reflection is when light rays bounce off a surface.
mirror
shiny metal
tinted sunglasses
tinted windows

7. The light will also change direction if it goes something. through
- refracts (bends, breaks)
through

8. A refraction is when light rays bend as they go something.
through
glass
eye glasses
cameras
microscope, hand lens and telescope

9. Refraction and Density
The more denser (thicker) the matter is….
the more the light rays are refracted (bent)!
light + density = lots of refraction!!

10. larger or smaller Lenses
We look through lenses (made of manmade glass or plastic) to see objects. The lenses cause light to refract (bend) thus making objects look larger or smaller.
Lenses can make objects appear …
larger or smaller

11. Larger
A convex lens makes objects appear larger.

12. Larger = Convex Lens eye glasses camera zoom lens microscope
Used for:
eye glasses
microscope
hand lens
camera zoom lens
Binoculars

13. A concave lens makes an object look smaller.

14. eye glasses camera makeup mirror car side mirrors Used for:
smaller = Concave Lens
Used for:
eye glasses
makeup mirror
camera
car side mirrors

15. Color My World
Surprise! White light is made up of all the colors of the rainbow put together.
This is called the color spectrum.

16. When white light hits something:
Some colors from the white light are absorbed.
Some colors from the white light are reflected.

17. The color that is reflected ….. is the color of the object!
Surprise!!!
The color that is reflected
….. is the color of the object!
All the other colors are….absorbed!

18. Let’s try it….
A red book
The red book is every color....
except red!

19. Let’s try it….
A blue car
The blue car is every color....
except blue!

20. Let’s try it…. A black cat Black absorbs all colors so….
black is the absence of color!

21. Let’s try it…. white snow White reflects all the colors so….
white is all the colors together!