Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 658 · 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.🛟 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 does not fall (d) so it gets hot
2. 2.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
3. 3.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a balloon (c) yeast (d) a sunny window
4. 4.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) stare at the Sun (c) look at it through glass (d) look at it in a mirror
5. 5.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a clear glass of water (c) a sunny window (d) a sheet of white paper
6. 6.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) prisms (c) balloons (d) magnets
9. 9.⚖️ 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) False (b) True
10. 10.⚖️ 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 measure it (c) we keep it the same
11. 11.⚖️ 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 white paper (b) the amount of water (c) brightness of rainbow
12. 12.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a magnet (c) a clear glass of water (d) bright sunlight
13. 13.⚖️ 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 keep it the same (b) we change it (c) we measure it
14. 14.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) under the ground (c) behind you (d) straight above you
15. 15.⚖️ 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 same window (b) the same glass (c) the time of day (d) brightness of rainbow
16. 16.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny bits of dust (c) many colours mixed (d) tiny drops of water
17. 17.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is kept the same. (a) False (b) True
18. 18.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
19. 19.🧺 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
20. 20.⚖️ 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 change it (b) we measure it (c) we keep it the same
21. 21.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
22. 22.True or false: turmeric powder is 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) a clear glass of water (b) a sheet of white paper (c) a sunny window (d) a magnet
24. 24.🌈 In VIBGYOR, what number colour is violet?
25. 25.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
26. 26.🌈 In VIBGYOR, what number colour is orange?
27. 27.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a magnet (c) yeast (d) a clear glass of water
28. 28.⚖️ 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 measure it (b) we keep it the same (c) we change it
29. 29.True or false: a balloon is needed for the water rainbow. (a) False (b) True
30. 30.True or false: a mirror is needed for the water rainbow. (a) False (b) True
31. 31.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a balloon (c) a clear glass of water (d) bright sunlight
34. 34.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a clear glass of water (c) a mirror (d) bright sunlight
35. 35.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) a shadow of ice (c) a magnet (d) snow falling
36. 36.⚖️ 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 glass (b) the amount of water (c) brightness of rainbow
37. 37.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
38. 38.🌈 In VIBGYOR, what number colour is red?
39. 39.⚖️ 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) brightness of rainbow (c) the amount of water (d) the same white paper
40. 40.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is the one thing we change. (a) True (b) False

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