← Make a rainbow with water and sunlight lesson New set →

Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 973 · 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.

NameDateTime takenScore ___ / 40
  1. 1.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) under the ground (c) behind you (d) straight above you
  2. 2.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  3. 3.⚖️ 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 measure it (b) we change it (c) we keep it the same
  4. 4.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) bright sunlight (c) a sunny window (d) a battery cell
  5. 5.⚖️ 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
  6. 6.True or false: a sheet of white paper is needed for the water rainbow. (a) False (b) True
  7. 7.🔮 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
  8. 8.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it turns brighter (c) it floats away (d) the rainbow fades
  9. 9.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) water splits the light (c) the paper makes colours (d) the water is coloured
  10. 10.🛟 Which rule keeps you safe when working with sunlight? (a) stare at the Sun (b) look at it through glass (c) look at it in a mirror (d) never look at the Sun
  11. 11.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
  12. 12.🧺 Do we need yeast 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? True or false: brightness of rainbow is what we measure. (a) False (b) True
  14. 14.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a magnet (d) a sheet of white paper
  15. 15.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a sheet of white paper (c) a balloon (d) bright sunlight
  16. 16.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is kept the same. (a) True (b) False
  17. 17.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) orange (b) red (c) yellow (d) violet
  18. 18.⚖️ 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 glass (c) the amount of water (d) the time of day
  19. 19.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) clouds (c) magnets (d) prisms
  20. 20.True or false: a magnet is needed for the water rainbow. (a) False (b) True
  21. 21.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a sheet of white paper (c) a balloon (d) turmeric powder
  22. 22.⚖️ 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
  23. 23.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sunny window (c) a battery cell (d) a sheet of white paper
  24. 24.🌈 In VIBGYOR, what number colour is green?
  25. 25.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a sunny window (c) a clear glass of water (d) bright sunlight
  26. 26.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
  27. 27.⚖️ 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 amount of water (d) brightness of rainbow
  28. 28.🧺 Which of these is needed for the water rainbow? (a) yeast (b) a balloon (c) a magnet (d) a clear glass of water
  29. 29.True or false: a mirror is not needed for the water rainbow. (a) True (b) False
  30. 30.⚖️ 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 same white paper
  31. 31.🧺 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) a sunny window (d) turmeric powder
  32. 32.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a sheet of white paper (d) a mirror
  33. 33.⚖️ 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) True (b) False
  34. 34.⚖️ 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
  35. 35.🛟 Why should the glass of water stand on a steady, flat place? (a) so it turns blue (b) so it does not fall (c) so the Sun moves (d) so it gets hot
  36. 36.⚖️ 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 keep it the same (c) we measure it
  37. 37.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
  38. 38.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sheet of white paper (c) a clear glass of water (d) yeast
  39. 39.🧺 Do we need turmeric powder for the water rainbow? (a) not needed (b) needed
  40. 40.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) blue (b) green (c) red (d) violet

Answer key

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

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