Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 148 · 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 clear glass of water (b) a sunny window (c) a mirror (d) bright sunlight
2. 2.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a mirror (c) a clear glass of water (d) a sunny window
3. 3.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
4. 4.🧺 Do we need bright sunlight for the water rainbow? (a) needed (b) not needed
5. 5.🌈 How many colours do we name in a rainbow (VIBGYOR)?
6. 6.⚖️ 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 measure it (b) we keep it the same (c) we change it
7. 7.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
8. 8.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
9. 9.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so it does not fall (d) so the Sun moves
10. 10.⚖️ 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
11. 11.🌈 In VIBGYOR, what number colour is orange?
12. 12.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a battery cell (c) a sunny window (d) turmeric powder
13. 13.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the paper makes colours (c) water splits the light (d) the glass is painted
14. 14.🌈 In VIBGYOR, what number colour is indigo?
15. 15.🧺 Which of these is not needed for the water rainbow? (a) a battery cell (b) a clear glass of water (c) bright sunlight (d) a sunny window
16. 16.⚖️ 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) True (b) False
17. 17.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) yeast (c) a battery cell (d) bright sunlight
18. 18.⚖️ 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) True (b) False
19. 19.⚖️ 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) the same glass (c) brightness of rainbow
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 glass”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 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) bright sunlight (d) turmeric powder
22. 22.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) clouds (c) balloons (d) prisms
23. 23.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) stare at the Sun (c) never look at the Sun (d) look at it through glass
24. 24.⚖️ 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
25. 25.☀️ What is white sunlight really made of? (a) only yellow light (b) tiny drops of water (c) many colours mixed (d) tiny bits of dust
26. 26.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sheet of white paper (c) a clear glass of water (d) bright sunlight
29. 29.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) bright sunlight (d) a clear glass of water
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change it
31. 31.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
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? True or false: the same white paper is what we measure. (a) True (b) False
34. 34.True or false: a clear glass of water is needed for the water rainbow. (a) True (b) False
35. 35.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a magnet (c) a clear glass of water (d) a mirror
36. 36.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
37. 37.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) blue (c) violet (d) red
38. 38.⚖️ 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) brightness of rainbow (b) the same white paper (c) the amount of water (d) the same window
39. 39.⚖️ 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 white paper (b) the amount of water (c) the same glass (d) brightness of rainbow
40. 40.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) a balloon (d) a sheet of white paper

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