Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 737 · 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? What do we do with “brightness of rainbow”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.True or false: a magnet is not needed for the water rainbow. (a) True (b) False
3. 3.True or false: a clear glass of water is needed for the water rainbow. (a) False (b) True
4. 4.🧺 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) a battery cell (d) bright sunlight
5. 5.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
6. 6.🧺 Which of these is needed for the water rainbow? (a) yeast (b) turmeric powder (c) a clear glass of water (d) a mirror
7. 7.🧺 Which of these is not needed for the water rainbow? (a) a magnet (b) a sunny window (c) a sheet of white paper (d) bright sunlight
8. 8.🌈 In VIBGYOR, what number colour is green?
9. 9.🌈 In VIBGYOR, what number colour is indigo?
10. 10.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) prisms (b) magnets (c) clouds (d) balloons
11. 11.☀️ 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
12. 12.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
13. 13.⚖️ 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 amount of water (c) the time of day (d) the same glass
14. 14.🌈 How many colours do we name in a rainbow (VIBGYOR)?
15. 15.⚖️ 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
16. 16.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
17. 17.⚖️ 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) False (b) True
18. 18.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns all red (c) it turns brighter (d) it floats away
19. 19.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it turns blue (c) so the Sun moves (d) so it does not fall
20. 20.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) never look at the Sun (c) look at it in a mirror (d) look at it through glass
21. 21.⚖️ 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 window (b) the same white paper (c) brightness of rainbow (d) the same glass
22. 22.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) violet (c) red (d) blue
23. 23.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a magnet (c) a small rainbow (d) snow falling
24. 24.⚖️ 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) False (b) True
25. 25.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a battery cell (c) a sunny window (d) yeast
26. 26.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) bright sunlight (d) a mirror
27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) a sheet of white paper (c) bright sunlight (d) a clear glass of water
28. 28.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
29. 29.⚖️ 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 change it (b) we measure it (c) we keep it the same
30. 30.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a balloon (c) bright sunlight (d) a battery cell
31. 31.🌈 In VIBGYOR, what number colour is orange?
32. 32.🧺 Which of these is not needed for the water rainbow? (a) a sheet of white paper (b) a mirror (c) bright sunlight (d) a sunny window
33. 33.⚖️ 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 white paper (b) the amount of water (c) brightness of rainbow
34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) yeast (c) a sheet of white paper (d) a sunny window
35. 35.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a magnet (c) a sunny window (d) a sheet of white paper
36. 36.⚖️ 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) False (b) True
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 white paper”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
39. 39.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) violet (c) orange (d) red
40. 40.📘 What do we call light bending as it passes from air into water? (a) refraction (b) reflection (c) evaporation (d) magnetism

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids