Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 473 · 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 a balloon for the water rainbow? (a) needed (b) not needed
2. 2.True or false: bright sunlight is not needed for the water rainbow. (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: the same window is the one thing we change. (a) False (b) True
4. 4.🌈 How many colours do we name in a rainbow (VIBGYOR)?
5. 5.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
6. 6.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
7. 7.🧺 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) a magnet (d) bright sunlight
8. 8.🌈 In VIBGYOR, what number colour is red?
9. 9.🌈 In VIBGYOR, what number colour is orange?
10. 10.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) turmeric powder (d) a clear glass of water
11. 11.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it gets hot (c) so it turns blue (d) so it does not fall
12. 12.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
13. 13.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) never look at the Sun (c) look at it in a mirror (d) look at it through glass
14. 14.⚖️ 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) False (b) True
15. 15.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
16. 16.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
17. 17.🌈 In VIBGYOR, what number colour is yellow?
18. 18.⚖️ 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 measure it (b) we keep it the same (c) we change it
19. 19.⚖️ 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 keep it the same (b) we measure it (c) we change it
20. 20.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) balloons (c) prisms (d) magnets
21. 21.⚖️ 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) the amount of water (c) brightness of rainbow (d) the time of day
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a sheet of white paper (c) a battery cell (d) bright sunlight
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is kept the same. (a) False (b) True
24. 24.🌈 In VIBGYOR, what number colour is indigo?
25. 25.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) a mirror (d) bright sunlight
26. 26.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a battery cell (c) a magnet (d) a sheet of white paper
27. 27.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
28. 28.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
29. 29.⚖️ 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) False (b) True
30. 30.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) yeast (d) a sunny window
31. 31.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a mirror (c) a clear glass of water (d) bright sunlight
32. 32.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) bright sunlight (c) a balloon (d) a mirror
33. 33.⚖️ 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
34. 34.🌈 In VIBGYOR, what number colour is green?
35. 35.True or false: yeast is not needed for the water rainbow. (a) False (b) True
36. 36.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a shadow of ice (c) a magnet (d) a small rainbow
37. 37.⚖️ 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
38. 38.True or false: a balloon is needed for the water rainbow. (a) False (b) True
39. 39.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a clear glass of water (c) a sheet of white paper (d) bright sunlight

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