Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 825 · 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 sunny window (b) bright sunlight (c) a sheet of white paper (d) a mirror
2. 2.⚖️ 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 time of day (c) brightness of rainbow (d) the same window
3. 3.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) under the ground (c) in front of you (d) behind you
4. 4.🌈 How many colours do we name in a rainbow (VIBGYOR)?
5. 5.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) True (b) False
6. 6.True or false: a magnet is needed for the water rainbow. (a) True (b) False
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 time of day
8. 8.⚖️ 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
9. 9.🌈 In VIBGYOR, what number colour is violet?
10. 10.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) turmeric powder (c) a magnet (d) yeast
11. 11.🧺 Do we need a sheet of white paper for the water rainbow? (a) needed (b) not needed
12. 12.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) blue (c) red (d) green
13. 13.⚖️ 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 measure it (b) we keep it the same (c) we change it
14. 14.⚖️ 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 glass (b) the amount of water (c) the same white paper (d) brightness of rainbow
15. 15.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) red (c) yellow (d) violet
16. 16.☀️ 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
17. 17.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a magnet (c) a clear glass of water (d) bright sunlight
18. 18.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
19. 19.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a clear glass of water (d) turmeric powder
21. 21.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
22. 22.🧺 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) a sunny window
23. 23.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) the paper makes colours (c) the glass is painted (d) water splits the light
24. 24.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) bright sunlight (c) a clear glass of water (d) a sheet of white paper
25. 25.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) a small rainbow (c) a magnet (d) snow falling
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) the rainbow fades (c) it floats away (d) it turns all red
29. 29.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
30. 30.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
31. 31.🌈 In VIBGYOR, what number colour is indigo?
32. 32.🌈 In VIBGYOR, what number colour is green?
33. 33.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a balloon (c) yeast (d) a clear glass of water
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is the one thing we change. (a) True (b) False
36. 36.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) clouds (c) balloons (d) prisms
37. 37.⚖️ 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 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? Which of these is kept the same? (a) brightness of rainbow (b) the same white paper (c) the amount of water
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is what we measure. (a) True (b) False
40. 40.🌈 In VIBGYOR, what number colour is yellow?

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