Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 277 · 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.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) False (b) True
2. 2.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) True (b) False
3. 3.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is kept the same. (a) False (b) True
4. 4.🌈 In VIBGYOR, what number colour is yellow?
5. 5.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so it does not fall (d) so the Sun moves
6. 6.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it floats away (c) the rainbow fades (d) it turns brighter
7. 7.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it through glass (c) look at it in a mirror (d) never look at the Sun
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) the time of day (b) brightness of rainbow (c) the amount of water
9. 9.🌈 In VIBGYOR, what number colour is violet?
10. 10.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) under the ground (c) straight above you (d) in front of you
11. 11.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) orange (c) yellow (d) red
12. 12.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a magnet (d) a sunny window
13. 13.🌈 In VIBGYOR, what number colour is red?
14. 14.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) yeast (d) a sunny window
15. 15.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the time of day (c) the amount of water (d) the same window
16. 16.⚖️ 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
17. 17.⚖️ 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 keep it the same (c) we measure it
18. 18.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) a sunny window (c) a clear glass of water (d) a sheet of white paper
19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) turmeric powder (c) a clear glass of water (d) bright sunlight
20. 20.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) a mirror (d) a balloon
21. 21.🌈 How many colours do we name in a rainbow (VIBGYOR)?
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a clear glass of water (c) bright sunlight (d) a sheet of white paper
23. 23.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
24. 24.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the glass is painted (c) water splits the light (d) the paper makes colours
25. 25.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a mirror (c) a sheet of white paper (d) a magnet
26. 26.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sunny window (c) bright sunlight (d) yeast
27. 27.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
28. 28.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) blue (c) red (d) green
29. 29.⚖️ 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) the same white paper (b) the same glass (c) the time of day (d) the amount of water
30. 30.⚖️ 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) True (b) False
31. 31.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
32. 32.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a magnet (c) snow falling (d) a small rainbow
33. 33.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
34. 34.🌈 In VIBGYOR, what number colour is indigo?
35. 35.⚖️ 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) True (b) False
36. 36.⚖️ 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 keep it the same (c) we change it
37. 37.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a balloon (d) a sheet of white paper
38. 38.🌈 In VIBGYOR, what number colour is orange?
39. 39.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the amount of water (c) the same white paper

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