Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 801 · 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 magnet (b) a clear glass of water (c) a sheet of white paper (d) a sunny window
2. 2.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) a magnet (d) a clear glass of water
3. 3.🌈 In VIBGYOR, what number colour is red?
4. 4.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) prisms (c) balloons (d) clouds
5. 5.⚖️ 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 amount of water (c) the time of day
6. 6.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) look at it in a mirror (c) look at it through glass (d) stare at the Sun
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) yeast (c) bright sunlight (d) a clear glass of water
9. 9.🌈 In VIBGYOR, what number colour is indigo?
10. 10.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a mirror (c) a clear glass of water (d) a sheet of white paper
12. 12.⚖️ 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
13. 13.🛟 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
14. 14.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
15. 15.☀️ What is white sunlight really made of? (a) tiny drops of water (b) only yellow light (c) tiny bits of dust (d) many colours mixed
16. 16.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sheet of white paper (c) bright sunlight (d) a clear glass of water
17. 17.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) bright sunlight (c) yeast (d) a battery cell
18. 18.True or false: a balloon is needed for the water rainbow. (a) False (b) True
19. 19.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
20. 20.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a battery cell (c) a clear glass of water (d) a mirror
21. 21.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) turmeric powder (d) a sheet of white paper
22. 22.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
23. 23.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) yeast (d) a sunny window
24. 24.🧺 Which of these is needed for the water rainbow? (a) yeast (b) turmeric powder (c) a mirror (d) a sunny window
25. 25.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it turns all red (d) it floats away
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 measure it (b) we keep it the same (c) we change it
27. 27.⚖️ 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) False (b) True
28. 28.⚖️ 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) True (b) False
29. 29.True or false: a battery cell is needed for the water rainbow. (a) False (b) True
30. 30.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a mirror (d) a clear glass of water
31. 31.⚖️ 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 measure it (c) we change it
32. 32.🌈 In VIBGYOR, what number colour is yellow?
33. 33.⚖️ 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
34. 34.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a battery cell (c) a sheet of white paper (d) a mirror
35. 35.🌈 In VIBGYOR, what number colour is green?
36. 36.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
37. 37.🌈 In VIBGYOR, what number colour is orange?
38. 38.⚖️ 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
39. 39.🌈 In VIBGYOR, what number colour is blue?
40. 40.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True

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