← Growing salt crystals lesson New set →

Salt Crystal Experiment Worksheet

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

Answer key

  1. True
  2. True
  3. True
  4. we measure it
  5. False
  6. cannot be undone
  7. not needed
  8. False
  9. a piece of string
  10. a grown-up
  11. rusting iron
  12. a mirror
  13. False
  14. we change it
  15. False
  16. sand
  17. False
  18. sugar
  19. needed
  20. turmeric powder
  21. small pebbles
  22. sawdust
  23. False
  24. False
  25. needed
  26. dissolves in water
  27. not needed
  28. bigger crystals
  29. melting ice
  30. False
  31. True
  32. food colour
  33. we keep it the same
  34. False
  35. food colour
  36. a battery cell
  37. safe from small children
  38. does not dissolve
  39. table salt
  40. False

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