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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 929 · 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 spoon (b) a shallow dish (c) salt (d) turmeric powder
  2. 2.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) warm water (c) a spoon (d) yeast
  3. 3.True or false: sugar does not dissolve in water. (a) True (b) False
  4. 4.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) warm water (c) a shallow dish (d) a mirror
  5. 5.🧂 Which of these does not dissolve in water? (a) sawdust (b) food colour (c) baking soda (d) glucose powder
  6. 6.True or false: melting butter is a change that cannot be undone. (a) True (b) False
  7. 7.True or false: folding paper is a change that cannot be undone. (a) False (b) True
  8. 8.🧈 Which of these is a change that cannot be undone? (a) cooking an egg (b) melting butter (c) folding paper (d) dissolving salt
  9. 9.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) salt (c) a magnet (d) a spoon
  10. 10.True or false: freezing water is a change that cannot be undone. (a) False (b) True
  11. 11.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the same dish”? (a) we change it (b) we measure it (c) we keep it the same
  12. 12.True or false: warm water is not needed for growing salt crystals. (a) True (b) False
  13. 13.🔍 Which is the odd one out? (a) table salt (b) sand (c) glucose powder (d) food colour
  14. 14.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is the one thing we change. (a) True (b) False
  15. 15.🧈 Which of these is a change that can be undone? (a) folding paper (b) rusting iron (c) milk turning to curd (d) baking a cake
  16. 16.⚖️ 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 keep it the same (b) we measure it (c) we change it
  17. 17.True or false: glucose powder dissolves in water. (a) True (b) False
  18. 18.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
  19. 19.True or false: dissolving salt is a change that can be undone. (a) False (b) True
  20. 20.⚖️ 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 kind of salt (b) days to see crystals (c) the same dish (d) sunny or shady place
  21. 21.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) glucose powder (d) sawdust
  22. 22.True or false: food colour does not dissolve in water. (a) False (b) True
  23. 23.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the kind of salt”? (a) we keep it the same (b) we measure it (c) we change it
  24. 24.🧂 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  25. 25.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) a battery cell (c) turmeric powder (d) a piece of string
  26. 26.🧺 Which of these is not needed for growing salt crystals? (a) turmeric powder (b) warm water (c) a piece of string (d) a shallow dish
  27. 27.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
  28. 28.True or false: yeast is needed for growing salt crystals. (a) False (b) True
  29. 29.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
  30. 30.True or false: a balloon is not needed for growing salt crystals. (a) False (b) True
  31. 31.True or false: a battery cell is needed for growing salt crystals. (a) False (b) True
  32. 32.True or false: sawdust dissolves in water. (a) False (b) True
  33. 33.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) few or no crystals (c) it fizzes (d) crystals grow faster
  34. 34.🧺 Do we need a piece of string for growing salt crystals? (a) needed (b) not needed
  35. 35.🧂 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) chalk powder (d) food colour
  36. 36.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) baking a cake (c) freezing water (d) dissolving salt
  37. 37.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) food colour (d) cooking oil
  38. 38.True or false: warm water is needed for growing salt crystals. (a) False (b) True
  39. 39.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) frozen (c) empty (d) saturated
  40. 40.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) cooking oil (d) table salt

Answer key

  1. turmeric powder
  2. yeast
  3. False
  4. a mirror
  5. sawdust
  6. False
  7. False
  8. cooking an egg
  9. a magnet
  10. False
  11. we keep it the same
  12. False
  13. sand
  14. False
  15. folding paper
  16. we change it
  17. True
  18. not needed
  19. True
  20. sunny or shady place
  21. glucose powder
  22. False
  23. we keep it the same
  24. dissolves in water
  25. a piece of string
  26. turmeric powder
  27. a grown-up
  28. False
  29. not needed
  30. True
  31. False
  32. False
  33. few or no crystals
  34. needed
  35. chalk powder
  36. baking a cake
  37. cooking oil
  38. True
  39. saturated
  40. table salt

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