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Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 590 · 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.True or false: small pebbles does not dissolve in water. (a) False (b) True
  2. 2.🧈 Which of these is a change that can be undone? (a) baking a cake (b) milk turning to curd (c) browning lemon ink (d) melting ice
  3. 3.⚖️ 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
  4. 4.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) a shallow dish (c) salt (d) a battery cell
  5. 5.True or false: browning lemon ink is a change that can be undone. (a) True (b) False
  6. 6.🧈 Can this change be undone: freezing water? (a) cannot be undone (b) can be undone
  7. 7.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) dissolving salt (c) cooking an egg (d) melting ice
  8. 8.🧺 Do we need warm water for growing salt crystals? (a) not needed (b) needed
  9. 9.True or false: a shallow dish is needed for growing salt crystals. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) cooking oil (d) sawdust
  11. 11.🧂 Which of these does not dissolve in water? (a) glucose powder (b) sugar (c) cooking oil (d) baking soda
  12. 12.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a mirror (c) salt (d) a piece of string
  13. 13.🧺 Do we need a mirror for growing salt crystals? (a) not needed (b) needed
  14. 14.True or false: warm water is not needed for growing salt crystals. (a) True (b) False
  15. 15.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) bigger crystals (b) no crystals (c) liquid crystals (d) smaller crystals
  16. 16.🛟 Where should you keep the crystal dish while it dries? (a) next to the baby (b) on the edge of a table (c) in a busy doorway (d) safe from small children
  17. 17.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is kept the same. (a) True (b) False
  18. 18.True or false: dissolving salt is a change that cannot be undone. (a) False (b) True
  19. 19.🧂 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
  20. 20.⚖️ 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 change it (c) we keep it the same
  21. 21.🧂 Which of these does not dissolve in water? (a) baking soda (b) sugar (c) table salt (d) small pebbles
  22. 22.🧂 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
  23. 23.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) melting butter (c) folding paper (d) baking a cake
  24. 24.🧂 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
  25. 25.⚖️ 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 kind of salt (c) the amount of salt (d) the same dish
  26. 26.🧂 Which of these dissolves in water? (a) small pebbles (b) sand (c) sugar (d) chalk powder
  27. 27.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) the kind of salt (b) the same dish (c) days to see crystals (d) sunny or shady place
  28. 28.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a spoon (c) a balloon (d) a piece of string
  29. 29.True or false: table salt does not dissolve in water. (a) True (b) False
  30. 30.True or false: a magnet is needed for growing salt crystals. (a) False (b) True
  31. 31.🧈 Can this change be undone: rusting iron? (a) cannot be undone (b) can be undone
  32. 32.🧺 Do we need turmeric powder for growing salt crystals? (a) not needed (b) needed
  33. 33.🧈 Can this change be undone: browning lemon ink? (a) can be undone (b) cannot be undone
  34. 34.True or false: a mirror is not needed for growing salt crystals. (a) True (b) False
  35. 35.True or false: salt is needed for growing salt crystals. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) sugar (d) sawdust
  37. 37.🧂 Which of these does not dissolve in water? (a) sand (b) table salt (c) glucose powder (d) baking soda
  38. 38.🔍 Which is the odd one out? (a) table salt (b) sugar (c) food colour (d) chalk powder
  39. 39.🔍 Which is the odd one out? (a) glucose powder (b) table salt (c) food colour (d) cooking oil
  40. 40.🧺 Which of these is needed for growing salt crystals? (a) a balloon (b) a mirror (c) turmeric powder (d) a spoon

Answer key

  1. True
  2. melting ice
  3. we keep it the same
  4. a battery cell
  5. False
  6. can be undone
  7. cooking an egg
  8. needed
  9. True
  10. glucose powder
  11. cooking oil
  12. a mirror
  13. not needed
  14. False
  15. bigger crystals
  16. safe from small children
  17. True
  18. False
  19. dissolves in water
  20. we change it
  21. small pebbles
  22. does not dissolve
  23. baking a cake
  24. dissolves in water
  25. sunny or shady place
  26. sugar
  27. days to see crystals
  28. a balloon
  29. False
  30. False
  31. cannot be undone
  32. not needed
  33. cannot be undone
  34. True
  35. True
  36. sugar
  37. sand
  38. chalk powder
  39. cooking oil
  40. a spoon

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