Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 108 · 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 window”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.⚖️ 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 same window (b) the amount of water (c) brightness of rainbow
3. 3.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
4. 4.🧺 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 balloon (d) bright sunlight
5. 5.🌈 In VIBGYOR, what number colour is green?
6. 6.True or false: yeast is needed for the water rainbow. (a) False (b) True
7. 7.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a clear glass of water (c) a sunny window (d) a sheet of white paper
8. 8.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a battery cell (c) a sheet of white paper (d) a balloon
9. 9.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
10. 10.True or false: yeast is not needed for the water rainbow. (a) False (b) True
11. 11.🌈 In VIBGYOR, what number colour is indigo?
12. 12.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) a balloon (c) turmeric powder (d) a magnet
13. 13.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
14. 14.🌈 How many colours do we name in a rainbow (VIBGYOR)?
15. 15.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
16. 16.⚖️ 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 glass (b) the same white paper (c) brightness of rainbow (d) the amount of water
17. 17.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) magnets (c) clouds (d) prisms
18. 18.☀️ What is white sunlight really made of? (a) tiny drops of water (b) many colours mixed (c) tiny bits of dust (d) only yellow light
19. 19.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it in a mirror (c) never look at the Sun (d) look at it through glass
20. 20.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) violet (c) orange (d) red
21. 21.🧺 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 mirror
22. 22.🌈 In VIBGYOR, what number colour is red?
23. 23.⚖️ 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 change it (b) we measure it (c) we keep it the same
24. 24.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
25. 25.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a magnet (c) a small rainbow (d) a shadow of ice
26. 26.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
27. 27.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
28. 28.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) a mirror (d) yeast
29. 29.⚖️ 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 change it (b) we keep it the same (c) we measure it
30. 30.⚖️ 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
31. 31.True or false: turmeric powder is needed for the water rainbow. (a) False (b) True
32. 32.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
33. 33.🌈 In VIBGYOR, what number colour is yellow?
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.⚖️ 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 amount of water (c) brightness of rainbow (d) the same glass
37. 37.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
38. 38.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
39. 39.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) yeast (c) a battery cell (d) a magnet
40. 40.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True

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