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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 57 · 40 questions
TalentJR

What you do (Dry out, crystals in): 1. An adult pours warm water into a cup. 2. Stir in salt, a spoon at a time, until no more dissolves. 3. Pour the salty water into a shallow dish and lay a string in it. 4. Leave it on a sunny windowsill, out of reach of small children, and check each day.

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  1. 1.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a battery cell (b) warm water (c) salt (d) a shallow dish
  2. 2.🧈 Can this change be undone: freezing water? (a) cannot be undone (b) can be undone
  3. 3.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
  4. 4.🧂 Why do crystals appear as the dish dries? (a) salt grows roots (b) the dish melts (c) water evaporates (d) salt eats water
  5. 5.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a piece of string (c) warm water (d) yeast
  6. 6.🧺 Do we need a magnet for growing salt crystals? (a) not needed (b) needed
  7. 7.🧂 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
  8. 8.True or false: small pebbles does not dissolve in water. (a) True (b) False
  9. 9.True or false: table salt dissolves in water. (a) False (b) True
  10. 10.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
  11. 11.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) a mirror (c) salt (d) turmeric powder
  12. 12.🧂 Which of these dissolves in water? (a) sand (b) glucose powder (c) small pebbles (d) cooking oil
  13. 13.🧺 Do we need a mirror for growing salt crystals? (a) needed (b) not needed
  14. 14.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is the one thing we change? (a) the amount of salt (b) the kind of salt (c) sunny or shady place (d) the amount of water
  15. 15.True or false: yeast is needed for growing salt crystals. (a) False (b) True
  16. 16.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny cubes (b) tiny triangles (c) tiny stars (d) tiny spheres
  17. 17.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) liquid crystals (b) no crystals (c) smaller crystals (d) bigger crystals
  18. 18.🔍 Which is the odd one out? (a) table salt (b) cooking oil (c) sugar (d) food colour
  19. 19.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of salt”? (a) we keep it the same (b) we change it (c) we measure it
  20. 20.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a balloon (b) a piece of string (c) a spoon (d) salt
  21. 21.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) a grown-up (c) a friend who is running (d) nobody needs to
  22. 22.🧂 Which of these does not dissolve in water? (a) baking soda (b) table salt (c) food colour (d) cooking oil
  23. 23.🧂 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) food colour (d) sawdust
  24. 24.🧂 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) glucose powder (d) chalk powder
  25. 25.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
  26. 26.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) warm water (c) a mirror (d) a battery cell
  27. 27.True or false: a shallow dish is not needed for growing salt crystals. (a) False (b) True
  28. 28.🧈 Which of these is a change that can be undone? (a) rusting iron (b) melting ice (c) cooking an egg (d) baking a cake
  29. 29.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) turmeric powder (b) a spoon (c) a shallow dish (d) warm water
  30. 30.🔍 Which is the odd one out? (a) sand (b) sawdust (c) glucose powder (d) cooking oil
  31. 31.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) yeast (c) a piece of string (d) a spoon
  32. 32.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a mirror (c) a spoon (d) salt
  33. 33.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) a balloon (c) a battery cell (d) a shallow dish
  34. 34.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
  35. 35.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “sunny or shady place”? (a) we measure it (b) we keep it the same (c) we change it
  36. 36.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) baking soda (d) cooking oil
  37. 37.True or false: sugar does not dissolve in water. (a) False (b) True
  38. 38.True or false: folding paper is a change that can be undone. (a) False (b) True
  39. 39.True or false: a magnet is not needed for growing salt crystals. (a) False (b) True
  40. 40.🧂 Which of these dissolves in water? (a) sawdust (b) table salt (c) chalk powder (d) sand

Answer key

  1. a battery cell
  2. can be undone
  3. needed
  4. water evaporates
  5. yeast
  6. not needed
  7. dissolves in water
  8. True
  9. True
  10. does not dissolve
  11. salt
  12. glucose powder
  13. not needed
  14. sunny or shady place
  15. False
  16. tiny cubes
  17. bigger crystals
  18. cooking oil
  19. we keep it the same
  20. a balloon
  21. a grown-up
  22. cooking oil
  23. sawdust
  24. chalk powder
  25. needed
  26. warm water
  27. False
  28. melting ice
  29. turmeric powder
  30. glucose powder
  31. yeast
  32. a mirror
  33. a shallow dish
  34. can be undone
  35. we change it
  36. baking soda
  37. False
  38. True
  39. True
  40. table salt

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