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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 526 · 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) yeast (b) warm water (c) a piece of string (d) salt
  2. 2.True or false: warm water is not needed for growing salt crystals. (a) False (b) True
  3. 3.🧂 Which of these dissolves in water? (a) small pebbles (b) sand (c) sugar (d) chalk powder
  4. 4.🧈 Which of these is a change that can be undone? (a) melting butter (b) browning lemon ink (c) cooking an egg (d) baking a cake
  5. 5.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
  6. 6.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  7. 7.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) crystals grow faster (c) it fizzes (d) few or no crystals
  8. 8.True or false: salt is not needed for growing salt crystals. (a) True (b) False
  9. 9.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) sunny or shady place (b) the kind of salt (c) days to see crystals
  10. 10.True or false: baking soda dissolves in water. (a) False (b) True
  11. 11.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
  12. 12.⚖️ 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) sunny or shady place (b) the amount of water (c) the amount of salt (d) the same dish
  13. 13.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
  14. 14.🧂 Which of these dissolves in water? (a) sand (b) baking soda (c) cooking oil (d) chalk powder
  15. 15.🧂 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
  16. 16.🧈 Can this change be undone: dissolving salt? (a) can be undone (b) cannot be undone
  17. 17.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to oil (b) it turns to butter (c) sugar crystals form (d) salt crystals form
  18. 18.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a spoon (c) warm water (d) turmeric powder
  19. 19.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) next to the baby (c) safe from small children (d) on the edge of a table
  20. 20.🧈 Which of these is a change that can be undone? (a) baking a cake (b) folding paper (c) milk turning to curd (d) cooking an egg
  21. 21.🧺 Do we need yeast for growing salt crystals? (a) not needed (b) needed
  22. 22.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a magnet (c) warm water (d) a piece of string
  23. 23.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a balloon (b) a spoon (c) salt (d) a shallow dish
  24. 24.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
  25. 25.True or false: rusting iron is a change that can be undone. (a) True (b) False
  26. 26.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is what we measure. (a) True (b) False
  27. 27.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.True or false: sugar does not dissolve in water. (a) True (b) False
  29. 29.🔍 Which is the odd one out? (a) table salt (b) sawdust (c) food colour (d) baking soda
  30. 30.True or false: a balloon is needed for growing salt crystals. (a) True (b) False
  31. 31.True or false: a battery cell is not needed for growing salt crystals. (a) True (b) False
  32. 32.🧂 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  33. 33.🧺 Which of these is not needed for growing salt crystals? (a) a magnet (b) a piece of string (c) salt (d) warm water
  34. 34.🧈 Which of these is a change that cannot be undone? (a) freezing water (b) melting ice (c) rusting iron (d) dissolving salt
  35. 35.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
  36. 36.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) turmeric powder (d) a spoon
  37. 37.🧺 Do we need a mirror for growing salt crystals? (a) not needed (b) needed
  38. 38.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of water”? (a) we measure it (b) we keep it the same (c) we change it
  39. 39.True or false: a shallow dish is needed for growing salt crystals. (a) False (b) True
  40. 40.True or false: a magnet is needed for growing salt crystals. (a) True (b) False

Answer key

  1. yeast
  2. False
  3. sugar
  4. melting butter
  5. needed
  6. dissolves in water
  7. few or no crystals
  8. False
  9. the kind of salt
  10. True
  11. a grown-up
  12. sunny or shady place
  13. not needed
  14. baking soda
  15. does not dissolve
  16. can be undone
  17. sugar crystals form
  18. turmeric powder
  19. safe from small children
  20. folding paper
  21. not needed
  22. a magnet
  23. a balloon
  24. not needed
  25. False
  26. False
  27. does not dissolve
  28. False
  29. sawdust
  30. False
  31. True
  32. dissolves in water
  33. a magnet
  34. rusting iron
  35. needed
  36. turmeric powder
  37. not needed
  38. we keep it the same
  39. True
  40. False

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