Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 844 · 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.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
2. 2.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) clouds (c) prisms (d) balloons
3. 3.🌈 In VIBGYOR, what number colour is green?
4. 4.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
5. 5.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) violet (b) red (c) orange (d) yellow
6. 6.🧺 Which of these is not needed for the water rainbow? (a) a mirror (b) bright sunlight (c) a clear glass of water (d) a sheet of white paper
7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
8. 8.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the same glass (c) the time of day (d) the same window
9. 9.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a magnet (c) a clear glass of water (d) bright sunlight
10. 10.⚖️ 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 window (b) the time of day (c) brightness of rainbow (d) the amount of water
11. 11.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) a sheet of white paper (c) bright sunlight (d) a clear glass of water
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 time of day (b) the amount of water (c) brightness of rainbow
13. 13.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) a sunny window (d) a balloon
14. 14.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is what we measure. (a) False (b) True
15. 15.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it does not fall (c) so the Sun moves (d) so it turns blue
16. 16.🌈 In VIBGYOR, what number colour is red?
17. 17.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
18. 18.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) water splits the light (c) the paper makes colours (d) the water is coloured
19. 19.🛟 Which rule keeps you safe when working with sunlight? (a) never look at the Sun (b) stare at the Sun (c) look at it in a mirror (d) look at it through glass
20. 20.⚖️ 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 change it (b) we keep it the same (c) we measure it
21. 21.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
22. 22.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) turmeric powder (d) a sheet of white paper
23. 23.🌈 In VIBGYOR, what number colour is yellow?
24. 24.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) a clear glass of water (c) bright sunlight (d) a sheet of white paper
25. 25.⚖️ 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
26. 26.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
27. 27.⚖️ 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 measure it (b) we keep it the same (c) we change it
28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) a sunny window (d) a battery cell
29. 29.☀️ 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
30. 30.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
31. 31.⚖️ 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) True (b) False
32. 32.🌈 In VIBGYOR, what number colour is blue?
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 white paper”? (a) we change it (b) we keep it the same (c) we measure it
34. 34.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a shadow of ice (d) a magnet
35. 35.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sheet of white paper (c) bright sunlight (d) a magnet
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.⚖️ 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 same white paper (c) the amount of water
38. 38.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
39. 39.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a battery cell (c) a sunny window (d) bright sunlight
40. 40.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed

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