Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 522 · 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.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny drops of water (c) many colours mixed (d) tiny bits of dust
2. 2.🌈 In VIBGYOR, what number colour is violet?
3. 3.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) False (b) True
4. 4.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) clouds (c) prisms (d) magnets
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 kept the same. (a) True (b) False
6. 6.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
7. 7.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) turmeric powder (c) a clear glass of water (d) bright sunlight
8. 8.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
9. 9.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
10. 10.🧺 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 clear glass of water (d) a balloon
11. 11.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) the rainbow fades (c) it floats away (d) it turns all red
12. 12.🌈 In VIBGYOR, what number colour is orange?
13. 13.⚖️ 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 window (c) brightness of rainbow
14. 14.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
15. 15.⚖️ 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 same white paper (b) the time of day (c) the amount of water (d) the same glass
16. 16.True or false: yeast is needed for the water rainbow. (a) True (b) False
17. 17.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) straight above you (c) behind you (d) under the ground
18. 18.True or false: a magnet is not needed for the water rainbow. (a) True (b) False
19. 19.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
20. 20.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
21. 21.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
22. 22.⚖️ 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
23. 23.🛟 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
24. 24.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) turmeric powder (c) a clear glass of water (d) a balloon
25. 25.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the water rainbow? (a) yeast (b) turmeric powder (c) a battery cell (d) a sheet of white paper
27. 27.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) orange (d) violet
28. 28.⚖️ 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
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 the one thing we change. (a) True (b) False
30. 30.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) red (c) green (d) violet
31. 31.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
32. 32.🔮 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
33. 33.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a balloon (c) a mirror (d) bright sunlight
34. 34.🌈 In VIBGYOR, what number colour is red?
35. 35.🌈 How many colours do we name in a rainbow (VIBGYOR)?
36. 36.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a battery cell (c) a clear glass of water (d) bright sunlight
37. 37.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
38. 38.⚖️ 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) brightness of rainbow (c) the same glass
39. 39.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a battery cell (c) a sheet of white paper (d) a clear glass of water

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