Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 156 · 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? What do we do with “the same glass”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) clouds (d) balloons
3. 3.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a magnet (c) a battery cell (d) a sunny window
5. 5.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) yeast (c) a mirror (d) bright sunlight
6. 6.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we change it (c) we measure it
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
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) brightness of rainbow (b) the time of day (c) the amount of water (d) the same glass
9. 9.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a balloon (c) a clear glass of water (d) a mirror
10. 10.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) a sheet of white paper (d) bright sunlight
11. 11.⚖️ 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
12. 12.⚖️ 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 amount of water (c) the time of day (d) the same glass
13. 13.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) green (c) violet (d) red
14. 14.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it in a mirror (c) stare at the Sun (d) look at it through glass
15. 15.⚖️ 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
16. 16.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) turmeric powder (c) a sheet of white paper (d) a sunny window
18. 18.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a magnet (c) a small rainbow (d) snow falling
19. 19.🌈 In VIBGYOR, what number colour is violet?
20. 20.True or false: yeast is needed for the water rainbow. (a) False (b) True
21. 21.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a clear glass of water (c) a balloon (d) bright sunlight
22. 22.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) water splits the light (c) the paper makes colours (d) the water is coloured
23. 23.⚖️ 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) False (b) True
24. 24.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) a sheet of white paper (c) a sunny window (d) bright sunlight
25. 25.🧺 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
26. 26.⚖️ 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
27. 27.🌈 In VIBGYOR, what number colour is yellow?
28. 28.🛟 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 gets hot (d) so it does not fall
29. 29.⚖️ 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
30. 30.🌈 In VIBGYOR, what number colour is orange?
31. 31.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
32. 32.🧺 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 sunny window (d) a battery cell
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) a sunny window (c) bright sunlight (d) a sheet of white paper
35. 35.🌈 In VIBGYOR, what number colour is green?
36. 36.🧺 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 magnet (d) a sheet of white paper
37. 37.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
38. 38.🌈 In VIBGYOR, what number colour is red?
39. 39.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
40. 40.⚖️ 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) True (b) False

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