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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 811 · 40 questions
TalentJR

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.

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  1. 1.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it in a mirror (c) never look at the Sun (d) look at it through glass
  2. 2.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a magnet (d) a clear glass of water
  3. 3.⚖️ 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 glass (c) the amount of water
  4. 4.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
  5. 5.⚖️ 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
  6. 6.⚖️ 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) False (b) True
  7. 7.🌈 In VIBGYOR, what number colour is violet?
  8. 8.⚖️ 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
  9. 9.🧺 Do we need a battery cell for the water rainbow? (a) not needed (b) needed
  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 amount of water (b) the time of day (c) brightness of rainbow
  11. 11.True or false: a sheet of white paper is not needed for the water rainbow. (a) False (b) True
  12. 12.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
  13. 13.⚖️ 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 same glass (c) the time of day (d) brightness of rainbow
  14. 14.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) refraction (c) evaporation (d) reflection
  15. 15.⚖️ 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 change it (b) we measure it (c) we keep it the same
  16. 16.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a shadow of ice (b) snow falling (c) a magnet (d) a small rainbow
  17. 17.⚖️ 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 measure it (c) we change it
  18. 18.True or false: a battery cell is not needed for the water rainbow. (a) False (b) True
  19. 19.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) the rainbow fades (b) it turns brighter (c) it floats away (d) it turns all red
  20. 20.⚖️ 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) brightness of rainbow (c) the same white paper (d) the time of day
  21. 21.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  22. 22.🧺 Do we need a magnet for the water rainbow? (a) needed (b) not needed
  23. 23.🌈 In VIBGYOR, what number colour is indigo?
  24. 24.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
  25. 25.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) orange (c) violet (d) red
  26. 26.🌦️ To see a rainbow in the sky, where must the Sun be? (a) straight above you (b) behind you (c) under the ground (d) in front of you
  27. 27.🧺 Which of these is needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) yeast (d) a battery cell
  28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) bright sunlight (d) a balloon
  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 window”? (a) we keep it the same (b) we measure it (c) we change it
  30. 30.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) bright sunlight (d) a mirror
  31. 31.⚖️ 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
  32. 32.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) yeast (c) a sheet of white paper (d) bright sunlight
  33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) turmeric powder (b) bright sunlight (c) a sunny window (d) a clear glass of water
  34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) a sheet of white paper (c) bright sunlight (d) a sunny window
  35. 35.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
  36. 36.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
  37. 37.⚖️ 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
  38. 38.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) False (b) True
  39. 39.True or false: a balloon is not needed for the water rainbow. (a) True (b) False
  40. 40.⚖️ 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

Answer key

  1. never look at the Sun
  2. a magnet
  3. the same glass
  4. needed
  5. True
  6. False
  7. 1
  8. we keep it the same
  9. not needed
  10. the time of day
  11. False
  12. not needed
  13. brightness of rainbow
  14. refraction
  15. we measure it
  16. a small rainbow
  17. we change it
  18. True
  19. the rainbow fades
  20. the amount of water
  21. 7
  22. not needed
  23. 2
  24. False
  25. violet
  26. behind you
  27. a sunny window
  28. a balloon
  29. we keep it the same
  30. a mirror
  31. we keep it the same
  32. yeast
  33. turmeric powder
  34. yeast
  35. not needed
  36. a magnet
  37. False
  38. True
  39. True
  40. True

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