Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 157 · 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.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) stare at the Sun (c) look at it through glass (d) never look at the Sun
2. 2.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
3. 3.🌈 In VIBGYOR, what number colour is red?
4. 4.🌈 How many colours do we name in a rainbow (VIBGYOR)?
5. 5.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
6. 6.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) a balloon (c) yeast (d) a mirror
7. 7.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
8. 8.🌈 In VIBGYOR, what number colour is indigo?
9. 9.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) turmeric powder (d) a sheet of white paper
10. 10.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a sheet of white paper (c) a magnet (d) turmeric powder
11. 11.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) orange (c) violet (d) red
12. 12.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
13. 13.True or false: a mirror is needed for the water rainbow. (a) True (b) False
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) bright sunlight (d) yeast
15. 15.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) bright sunlight (c) a sunny window (d) a sheet of white paper
16. 16.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
17. 17.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
18. 18.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
19. 19.⚖️ 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 glass (b) brightness of rainbow (c) the same window (d) the time of day
20. 20.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) clouds (c) balloons (d) prisms
21. 21.🌈 In VIBGYOR, what number colour is yellow?
22. 22.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) a sunny window (d) a magnet
23. 23.⚖️ 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 amount of water (c) the same white paper (d) the same window
24. 24.🌈 In VIBGYOR, what number colour is violet?
25. 25.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we keep it the same (b) we measure it (c) we change it
26. 26.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
27. 27.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns all red (c) it turns brighter (d) it floats away
28. 28.⚖️ 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
29. 29.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the water is coloured (c) the glass is painted (d) the paper makes colours
30. 30.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) in front of you (c) under the ground (d) behind you
31. 31.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so the Sun moves (c) so it does not fall (d) so it gets hot
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) True (b) False
33. 33.🌈 In VIBGYOR, what number colour is orange?
34. 34.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
35. 35.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) snow falling (c) a magnet (d) a shadow of ice
36. 36.⚖️ 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
37. 37.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) True (b) False
38. 38.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) red (c) blue (d) green
39. 39.True or false: a balloon is needed for the water rainbow. (a) True (b) False
40. 40.⚖️ 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

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