Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 690 · 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.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) bright sunlight (d) a balloon
2. 2.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it turns blue (c) so the Sun moves (d) so it does not fall
3. 3.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sheet of white paper (c) bright sunlight (d) a sunny window
4. 4.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
5. 5.🌈 How many colours do we name in a rainbow (VIBGYOR)?
6. 6.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the glass is painted (c) the water is coloured (d) the paper makes colours
7. 7.⚖️ 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 glass (c) the amount of water (d) the same white paper
8. 8.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
9. 9.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it through glass (c) never look at the Sun (d) look at it in a mirror
10. 10.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
11. 11.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
12. 12.🌈 In VIBGYOR, what number colour is green?
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is kept the same. (a) False (b) True
15. 15.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a battery cell (c) a clear glass of water (d) turmeric powder
16. 16.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
17. 17.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
18. 18.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
19. 19.🌈 In VIBGYOR, what number colour is indigo?
20. 20.⚖️ 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 measure it (c) we change it
21. 21.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) True (b) False
22. 22.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a magnet (d) a shadow of ice
23. 23.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) blue (c) red (d) violet
24. 24.⚖️ 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
25. 25.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) turmeric powder (c) bright sunlight (d) a clear glass of water
27. 27.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
28. 28.🌈 In VIBGYOR, what number colour is orange?
29. 29.⚖️ 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 same white paper (c) the amount of water (d) the same window
30. 30.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
31. 31.📘 What do we call light bending as it passes from air into water? (a) refraction (b) magnetism (c) reflection (d) evaporation
32. 32.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a magnet (c) a mirror (d) bright sunlight
33. 33.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) a sunny window (d) yeast
34. 34.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
35. 35.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) clouds (d) prisms
36. 36.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
37. 37.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a sheet of white paper (c) a mirror (d) a battery cell
38. 38.🧺 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 sheet of white paper (d) a magnet
39. 39.⚖️ 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
40. 40.True or false: a mirror is needed for the water rainbow. (a) False (b) True

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