1. NOVEMBER 20 (A Day) November 21 (B day)
SCIENCE
NOVEMBER 20 (A Day)
November 21 (B day)

2. Interactive Notebook
Add this entry to your notebook: 6.P.1.2: Visible Light
Also add this entry to your table of contents…

3. Our standard….
6.P.1.2: Explain the relationship among visible light, the electromagnetic spectrum, and sight

4. Today’s objective is to find out….
What does it mean for light to be reflected?
How can light be absorbed?
How is light refracted in water?
How can light be transmitted or scattered?

5. Study Jams video 1. What does it mean for light to be reflected?
2. What does it mean for light to be refracted?
3. How is light absorbed?

6. Light
Write these notes!
Light is a form of energy emitted by the Sun and light producing objects on Earth.
Examples: a flashlight, classroom lights, a candle

7. Interactive notebooks….
Today you will be recording information and drawing various images for visible light
You will find the next 2 blank pages in your notebook and draw a vertical line down the middle
See teacher example
The left side will be images
The right side will be notes
Does anyone have any questions?

8. Draw and label pictures….

9. Draw and label pictures….
Refraction

10. Draw and label pictures….
Scattering

11. Draw and label pictures….
Transmission

12. Draw and label pictures….
Reflection

13. Draw and label pictures….
R-red
O-orange
Y-yellow
G-green
B-blue
I-indigo
V-violet
Visible
light

14. Visible light travels in transverse waves.
Write these notes!
Can be seen when light waves are emitted (given off) and light enters our eyes.
Visible light travels in transverse waves.
It has different wavelengths
Human eyes only respond to “visible light wavelengths” within the electromagnetic spectrum

15. Introduction to Light
Brain Pop video
“Light”

16. How do we see different colors?
Brain Pop video
“Color”
Bill Nye: Light and Color

17. Light Transmission – 2 types
Write these notes!
Definition - when light travels through a surface or object.
1. Direct: light goes through air or glass
2. Diffused: light goes through frosted materials (privacy glass)

18. Reflected Light - Notes
Write these notes!
Light hits a smooth surface and bounces off
Light can be absorbed (taken in) or reflected (bounced off )
White light = contains all the colors (ROYGBIV)
Absorbed light = the colors not seen
Reflected light = the colors seen
White objects reflect all the colors (ROYGBIV)
Black objects absorb all the colors of light

19. Reflected Light - Notes
Write these notes!
White light shining on an apple:
The color red bounces off the apple and enters our eyes while all the other colors are absorbed

20. Reflected Light: Introduction Video
Discovery Ed video
“ Reflected Light” (1:08 minutes)

21. Reflected Light
The colors we see are the colors reflected by objects; this explains why different objects have different colors
Green Shamrock (green is reflected)
Yellow Banana (yellow is reflected)
Orange Pumpkins (orange is reflected)

22. Reflected Light - Notes
Write these notes!
This is why we wear light colored clothes in the summer because more colors are reflected and we feel cooler
This is why when we wear dark clothing in the summer, we feel hotter (it is absorbing light, just like our radiometer experiment too)

23. Now it’s your turn….
Pick five items in the classroom and for each item list what color is being reflected and what colors are being absorbed.

24. Ms. Maas’ Five!
1. Black Lab Table Tops = it is absorbing all colors (ROYGBIV) and reflecting black (we see) 2. Yellow Textbooks = reflecting yellow (we see) and absorbing ROGBIV 3. Blue Chairs = reflecting blue (we see) and absorbing ROYGIV 4. Green Plant = reflecting green (we see) and absorbing ROYBIV 5. American Flag Red Stripes = reflecting red (we see) and absorbing OYGBIV

25. Refracted Light: Introduction Video
Discovery Ed video
Refracted Light (1:44 minutes)

26. Refracted Light - Notes
Write these notes!
All the colors of the visible spectrum travel at their own unique speed.
When light travels from one substance into another substance it changes speed and bends.
Light travels slower through water and glass than it does through air
Objects look broken or bent in water!

27. Refracted Light - Notes
Write these notes!
White light entering a glass prism can be refracted (or bent) and separated into the visible spectrum (ROYGBIV).
Colors refract (bend) at different angles because each color travels at different speeds.
Violet is bent the most and red is bent the least

28. Refracted Light - Notes
Write these notes!
White light through a prism = all seven colors refracted
The refracted spectrum can be bent again, with a second prism = back to white light!

29. How do rainbows form?
Brain Pop Video
“Rainbows”

30. Refracted Light - Notes
In nature, rainbows provide us with a beautiful spectrum
Rainbows occur when sunlight is refracted in small droplets of water.
The raindrops act like little water prisms that refract the light and form the rainbow.

31. Light Scattering
Write these notes!
When light interacts with an object causing the light to be redirected in all directions
Light scattering = why the sky is blue during daytime and red and orange at sunrise and sunset
Molecules in the air scatter blue light the most when the sun is overhead
When is sun is rising or setting, we see red and orange colors because the blue light has been scattered out and away from our line of sight.

32. Optical Illusion Video

33. The Human Eye
Discovery Ed video
“The Human Eye” (2:17 minutes)

34. The Human Eye: Parts The Human Eye: Cornea Pupil Lens Retina
Optic Nerve
Brain

35. Human Eye Diagram

36. Cow Eye Dissection
the box is a model of your eye. Light enters through the opening in the front of your eye (the iris) and passes through a crystalline lens. The lens focuses the light into an image that falls on your retina (the inside of the back of your eye). When an image falls on the retina, nerve cells send signals to your brain which are interpreted to create an image.

38. Listen to the video to find out these answers..
What does it mean for light to be reflected?
What does it mean for light to be absorbed? When light is taken in by a substance. This allows some colors to be taken in while other colors are reflected (these are the colors we see)
What does it mean for light to be refracted? When light travels from one substance into another substance it changes speed and bends.