← Growing salt crystals lesson New set →

Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 131 · 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.

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

Answer key

  1. False
  2. a piece of string
  3. few or no crystals
  4. a mirror
  5. False
  6. food colour
  7. table salt
  8. True
  9. can be undone
  10. saturated
  11. False
  12. False
  13. False
  14. False
  15. True
  16. turmeric powder
  17. sunny or shady place
  18. sand
  19. safe from small children
  20. cannot be undone
  21. can be undone
  22. a grown-up
  23. True
  24. False
  25. a magnet
  26. not needed
  27. we change it
  28. we keep it the same
  29. True
  30. needed
  31. chalk powder
  32. can be undone
  33. baking soda
  34. does not dissolve
  35. warm water
  36. bigger crystals
  37. False
  38. the amount of salt
  39. does not dissolve
  40. glucose powder

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