Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 770 · 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 balloon (b) bright sunlight (c) a sheet of white paper (d) a sunny window
2. 2.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a sunny window (c) a magnet (d) a clear glass of water
4. 4.⚖️ 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
5. 5.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) clouds (d) prisms
6. 6.🌈 In VIBGYOR, what number colour is yellow?
7. 7.True or false: yeast is not needed for the water rainbow. (a) False (b) True
8. 8.True or false: a balloon is needed for the water rainbow. (a) True (b) False
9. 9.🌈 How many colours do we name in a rainbow (VIBGYOR)?
10. 10.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a balloon (c) a mirror (d) a sunny window
11. 11.🌈 In VIBGYOR, what number colour is red?
12. 12.⚖️ 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
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 kept the same. (a) True (b) False
14. 14.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) red (c) green (d) violet
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
17. 17.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) turmeric powder (c) yeast (d) a battery cell
18. 18.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) red (c) orange (d) yellow
19. 19.⚖️ 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 amount of water (b) the same window (c) the same glass (d) the same white paper
20. 20.🛟 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
21. 21.⚖️ 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 time of day (c) the amount of water
22. 22.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) a magnet (c) snow falling (d) a shadow of ice
23. 23.🧺 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) bright sunlight (d) turmeric powder
24. 24.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
25. 25.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) a sheet of white paper (c) a clear glass of water (d) bright sunlight
27. 27.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
28. 28.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) turmeric powder (c) yeast (d) bright sunlight
29. 29.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
30. 30.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
31. 31.🌈 Why does sunlight make a rainbow through a glass of water? (a) the paper makes colours (b) water splits the light (c) the water is coloured (d) the glass is painted
32. 32.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a clear glass of water (d) yeast
33. 33.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) look at it in a mirror (d) stare at the Sun
34. 34.⚖️ 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 change it (b) we measure it (c) we keep it the same
35. 35.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
36. 36.🌦️ To see a rainbow in the sky, where must the Sun be? (a) behind you (b) under the ground (c) straight above you (d) in front of you
37. 37.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) a battery cell (d) a sheet of white paper
38. 38.⚖️ 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 time of day (b) the same white paper (c) the same window (d) brightness of rainbow
39. 39.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
40. 40.True or false: a mirror is not needed for the water rainbow. (a) True (b) False

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