Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 733 · 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? Which of these is the one thing we change? (a) the same white paper (b) brightness of rainbow (c) the same glass (d) the amount of water
2. 2.True or false: turmeric powder 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 clear glass of water (c) a battery cell (d) a balloon
4. 4.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the time of day is what we measure. (a) True (b) False
5. 5.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) bright sunlight (c) a mirror (d) a magnet
6. 6.🛟 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
7. 7.🌈 In VIBGYOR, what number colour is violet?
8. 8.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) bright sunlight (c) a clear glass of water (d) a sunny window
9. 9.☀️ 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
10. 10.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
11. 11.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
12. 12.🧺 Do we need a mirror for the water rainbow? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) a sunny window (d) turmeric powder
14. 14.⚖️ 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) True (b) False
15. 15.🌈 In VIBGYOR, what number colour is red?
16. 16.🌈 How many colours do we name in a rainbow (VIBGYOR)?
17. 17.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
18. 18.⚖️ 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) False (b) True
19. 19.🌈 In VIBGYOR, what number colour is indigo?
20. 20.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a balloon (c) a sheet of white paper (d) turmeric powder
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) a magnet (d) a sheet of white paper
22. 22.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
23. 23.🌈 In VIBGYOR, what number colour is green?
24. 24.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the water is coloured (c) the paper makes colours (d) the glass is painted
25. 25.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True
26. 26.⚖️ 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
27. 27.🌈 In VIBGYOR, what number colour is orange?
28. 28.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) violet (c) red (d) orange
29. 29.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) prisms (c) magnets (d) clouds
30. 30.⚖️ 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
31. 31.🌈 In VIBGYOR, what number colour is blue?
32. 32.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
33. 33.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) it turns all red (d) the rainbow fades
34. 34.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ 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) True (b) False
37. 37.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a sheet of white paper (d) a balloon
39. 39.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
40. 40.⚖️ 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 measure it (c) we change it

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