Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 884 · 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 balloon (c) bright sunlight (d) a sunny window
2. 2.True or false: yeast is needed for the water rainbow. (a) True (b) False
3. 3.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
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 the one thing we change. (a) False (b) True
5. 5.🛟 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
6. 6.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) bright sunlight (c) a clear glass of water (d) a balloon
7. 7.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a small rainbow (c) a magnet (d) a shadow of ice
8. 8.⚖️ 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) False (b) True
9. 9.🧺 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 sheet of white paper (d) yeast
10. 10.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
11. 11.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) a balloon (c) turmeric powder (d) a battery cell
12. 12.⚖️ 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) True (b) False
13. 13.🧺 Do we need a sheet of white paper for the water rainbow? (a) not needed (b) needed
14. 14.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) balloons (c) prisms (d) clouds
15. 15.🌈 Why does sunlight make a rainbow through a glass of water? (a) water splits the light (b) the water is coloured (c) the glass is painted (d) the paper makes colours
16. 16.🌈 In VIBGYOR, what number colour is violet?
17. 17.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
18. 18.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it gets hot (c) so the Sun moves (d) so it does not fall
19. 19.⚖️ 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 amount of water (b) the same window (c) the time of day (d) the same 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 time of day”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
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 orange?
24. 24.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) yeast (c) a balloon (d) a battery cell
25. 25.True or false: a battery cell is needed for the water rainbow. (a) False (b) True
26. 26.🌈 How many colours do we name in a rainbow (VIBGYOR)?
27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) bright sunlight (c) a sunny window (d) a clear glass of water
28. 28.🧺 Which of these is needed for the water rainbow? (a) a sunny window (b) turmeric powder (c) a magnet (d) yeast
29. 29.⚖️ 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
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.⚖️ 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
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.☀️ What is white sunlight really made of? (a) tiny bits of dust (b) only yellow light (c) many colours mixed (d) tiny drops of water
34. 34.🌈 In VIBGYOR, what number colour is yellow?
35. 35.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) violet (c) yellow (d) red
36. 36.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
37. 37.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
38. 38.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) blue (c) violet (d) red
39. 39.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
40. 40.True or false: bright sunlight is needed for the water rainbow. (a) False (b) True

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