Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 847 · 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.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a sunny window (c) a clear glass of water (d) a sheet of white paper
2. 2.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
3. 3.🛟 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
4. 4.🌈 In VIBGYOR, what number colour is red?
5. 5.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a mirror (c) a battery cell (d) a sheet of white paper
6. 6.🌈 How many colours do we name in a rainbow (VIBGYOR)?
7. 7.⚖️ 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 white paper
8. 8.⚖️ 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
9. 9.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it floats away (c) the rainbow fades (d) it turns brighter
10. 10.⚖️ 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) brightness of rainbow (c) the amount of water
11. 11.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
12. 12.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) yeast (c) a magnet (d) bright sunlight
13. 13.🌈 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
14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) yeast (d) bright sunlight
15. 15.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) yeast (c) a mirror (d) turmeric powder
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a battery cell (c) a clear glass of water (d) a sunny window
18. 18.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
19. 19.⚖️ 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
20. 20.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
21. 21.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) prisms (c) balloons (d) magnets
22. 22.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
23. 23.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) a mirror (d) bright sunlight
24. 24.⚖️ 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 amount of water (c) the time of day (d) brightness of rainbow
25. 25.🛟 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
26. 26.☀️ What is white sunlight really made of? (a) only yellow light (b) many colours mixed (c) tiny bits of dust (d) tiny drops of water
27. 27.🌈 In VIBGYOR, what number colour is blue?
28. 28.🧺 Do we need yeast for the water rainbow? (a) not needed (b) needed
29. 29.True or false: a mirror is needed for the water rainbow. (a) True (b) False
30. 30.⚖️ 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
31. 31.⚖️ 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 glass (b) brightness of rainbow (c) the amount of water (d) the same white paper
32. 32.🌈 In VIBGYOR, what number colour is indigo?
33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) a sunny window (c) a sheet of white paper (d) bright sunlight
34. 34.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
35. 35.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a magnet (c) a battery cell (d) a sunny window
37. 37.⚖️ 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
38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) False (b) True
39. 39.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a battery cell (c) a sheet of white paper (d) bright sunlight
40. 40.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed

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