Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 808 · 40 questions

What you do (Bend and split): 1. Fill a clear glass with water and set it on a steady, sunny windowsill. 2. Put white paper on the floor where the sunlight passes through the glass. 3. Move the paper or glass slowly until a rainbow appears. 4. Never look straight at the Sun.

1. 1.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
2. 2.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) a sunny window (d) a magnet
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) a clear glass of water (d) a balloon
4. 4.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) yellow (c) orange (d) red
5. 5.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) yeast (d) a clear glass of water
6. 6.🌈 How many colours do we name in a rainbow (VIBGYOR)?
7. 7.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
8. 8.🌈 In VIBGYOR, what number colour is indigo?
9. 9.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the same white paper (b) brightness of rainbow (c) the same window (d) the amount of water
10. 10.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) brightness of rainbow (b) the same white paper (c) the amount of water (d) the same glass
11. 11.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
12. 12.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) turmeric powder (d) a clear glass of water
13. 13.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) False (b) True
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a sheet of white paper (d) a balloon
15. 15.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) False (b) True
16. 16.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) a mirror (c) a balloon (d) a battery cell
17. 17.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) red (c) green (d) violet
18. 18.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) clouds (d) prisms
21. 21.🌈 In VIBGYOR, what number colour is blue?
22. 22.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it floats away (c) it turns brighter (d) the rainbow fades
23. 23.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a shadow of ice (c) snow falling (d) a small rainbow
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) False (b) True
25. 25.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
27. 27.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it does not fall (c) so it turns blue (d) so it gets hot
28. 28.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a magnet (d) a clear glass of water
29. 29.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is kept the same. (a) False (b) True
30. 30.🌈 In VIBGYOR, what number colour is violet?
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) True (b) False
32. 32.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) a battery cell (d) a sunny window
33. 33.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) never look at the Sun (d) stare at the Sun
34. 34.True or false: a mirror is needed for the water rainbow. (a) False (b) True
35. 35.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
36. 36.🌈 In VIBGYOR, what number colour is red?
37. 37.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is what we measure. (a) False (b) True
38. 38.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
39. 39.🌈 In VIBGYOR, what number colour is yellow?
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) True (b) False

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