Math and science
Shape Detective
Count the circles, triangles and rectangles hiding in a robot, then build your own character from shapes.
Thinking sheet · Math and science
Make a Rainbow
Make a rainbow with water, a glass and sunlight, and record the color order.
- Grades
- K–4
- Time
- about 20 minutes
- Topic
- Math and science
- Kids practice
- light and color, experimenting, observation
What kids do
“Catch a rainbow with a glass of water and some sun!”
- My setup
- The rainbow I made
- The colors, in order
- And the rest
- I think rainbows happen because…
How to run it
- Put a glass of water on a sunny sill over white paper.
- A flashlight and a CD work too.
- Remember ROY G BIV.
Talk about it
- Which color is always on top?
- Why do we need the sun?
- Where else do you see rainbows?
Take it further
Make one with a garden hose.
Pairs well with
Free for home and classroom use. Print as many copies as you need.
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Free for teachers
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