Group Members _____________________________________________________
__________________________________________________________________
Absent ____________________________________________________________
Paddle Colors
Materials


Set of colored paddles
Flashlight
Safety Concerns: Do not shine flashlight in other
students’ eyes.
Procedure
Combine your paddles in the color combinations listed below. Write the color the two
paddles together produce.
Red Orange Yellow Green Blue Violet
Red
X
Orange
X
X
Yellow
X
X
X
Green
X
X
X
X
Blue
X
X
X
X
X
Violet
X
X
X
X
X
X
Why is the Sky Blue?
Question
What happens when you shine a light through milky water?
Materials



Twelve drops of milk
Beaker
Flashlight
Safety Concerns: Use of glassware. Discuss safe use of
glassware with students.
Procedure
1. Stir twelve drops of milk into a beaker full of water.
2. Darken the room.
3. Shine a flashlight against the side of the glass.
Group Members _____________________________________________________
__________________________________________________________________
Absent ____________________________________________________________
Why is the Sky Blue?
Pre-Lab Questions
1. What is the problem or question?
__________________________________________________________________
__________________________________________________________________
2. What is your hypothesis?
__________________________________________________________________
__________________________________________________________________
3. What is the variable?
There is no variable for this activity.
Question and Analysis
4. Write your observations below.
__________________________________________________________________
__________________________________________________________________
Conclusions
5. What do you think is causing the color in the glass?
__________________________________________________________________
__________________________________________________________________
6. Was your hypothesis correct or not? Explain.
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
7. List two things you learned from this activity.
a. ____________________________________________________________
__________________________________________________________________
b. ____________________________________________________________
__________________________________________________________________