Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 590 · 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.🌈 In VIBGYOR, what number colour is orange?
2. 2.⚖️ 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
3. 3.🌈 How many colours do we name in a rainbow (VIBGYOR)?
4. 4.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
5. 5.⚖️ 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
6. 6.True or false: yeast is not needed for the water rainbow. (a) False (b) True
7. 7.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.⚖️ 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 time of day (b) the amount of water (c) the same glass (d) the same window
9. 9.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
10. 10.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) bright sunlight (c) a sheet of white paper (d) turmeric powder
11. 11.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) look at it in a mirror (c) stare at the Sun (d) never look at the Sun
12. 12.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
13. 13.🧺 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 magnet
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) turmeric powder (c) bright sunlight (d) a clear glass of water
15. 15.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) a balloon (c) a battery cell (d) turmeric powder
16. 16.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
17. 17.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a mirror (c) a sheet of white paper (d) a clear glass of water
18. 18.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
19. 19.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
20. 20.⚖️ 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
21. 21.⚖️ 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 measure it (b) we keep it the same (c) we change it
22. 22.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) clouds (d) prisms
23. 23.🌈 In VIBGYOR, what number colour is violet?
24. 24.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) water splits the light (c) the water is coloured (d) the paper makes colours
25. 25.🧺 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) a sheet of white paper (d) yeast
26. 26.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so the Sun moves (c) so it gets hot (d) so it turns blue
27. 27.☀️ What is white sunlight really made of? (a) many colours mixed (b) only yellow light (c) tiny bits of dust (d) tiny drops of water
28. 28.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
29. 29.🌈 In VIBGYOR, what number colour is blue?
30. 30.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) bright sunlight (d) yeast
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is what we measure. (a) False (b) True
32. 32.🌈 In VIBGYOR, what number colour is green?
33. 33.⚖️ 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
34. 34.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
35. 35.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) under the ground (c) in front of you (d) behind you
36. 36.⚖️ 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 amount of water (b) the same glass (c) brightness of rainbow
37. 37.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) violet (c) green (d) red
38. 38.True or false: a mirror is needed for the water rainbow. (a) True (b) False
39. 39.⚖️ 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) False (b) True
40. 40.⚖️ 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 change it (b) we measure it (c) we keep it the same

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