← Growing salt crystals lesson New set →

Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 631 · 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.⚖️ 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 measure it (b) we change it (c) we keep it the same
  2. 2.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) warm water (c) a spoon (d) a magnet
  3. 3.🧂 Why do crystals appear as the dish dries? (a) the dish melts (b) salt grows roots (c) salt eats water (d) water evaporates
  4. 4.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
  5. 5.True or false: a magnet is needed for growing salt crystals. (a) False (b) True
  6. 6.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) turmeric powder (b) salt (c) warm water (d) a spoon
  7. 7.⚖️ 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) False (b) True
  8. 8.True or false: cooking an egg is a change that cannot be undone. (a) False (b) True
  9. 9.⚖️ 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) True (b) False
  10. 10.True or false: rusting iron is a change that cannot be undone. (a) True (b) False
  11. 11.True or false: rusting iron is a change that can be undone. (a) True (b) False
  12. 12.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) liquid crystals (b) no crystals (c) bigger crystals (d) smaller crystals
  13. 13.True or false: chalk powder dissolves in water. (a) True (b) False
  14. 14.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) food colour (d) table salt
  15. 15.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) salt crystals form (b) it turns to oil (c) sugar crystals form (d) it turns to butter
  16. 16.🧈 Which of these is a change that can be undone? (a) rusting iron (b) cooking an egg (c) melting butter (d) baking a cake
  17. 17.🧈 Can this change be undone: cooking an egg? (a) can be undone (b) cannot be undone
  18. 18.⚖️ 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 keep it the same (b) we measure it (c) we change it
  19. 19.True or false: cooking oil does not dissolve in water. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) baking soda (d) glucose powder
  21. 21.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) chalk powder (d) small pebbles
  22. 22.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is what we measure. (a) True (b) False
  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: a piece of string is not needed for growing salt crystals. (a) False (b) True
  25. 25.True or false: dissolving salt is a change that can be undone. (a) False (b) True
  26. 26.True or false: turmeric powder is not needed for growing salt crystals. (a) True (b) False
  27. 27.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) a friend who is running (c) the youngest child (d) nobody needs to
  28. 28.🔍 Which is the odd one out? (a) table salt (b) sand (c) glucose powder (d) food colour
  29. 29.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) warm water (c) a magnet (d) salt
  30. 30.True or false: sugar dissolves in water. (a) True (b) False
  31. 31.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a piece of string (c) yeast (d) a spoon
  32. 32.🧈 Which of these is a change that can be undone? (a) rusting iron (b) browning lemon ink (c) baking a cake (d) freezing water
  33. 33.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  34. 34.🧂 Which of these dissolves in water? (a) chalk powder (b) sugar (c) sawdust (d) cooking oil
  35. 35.🧂 Which of these dissolves in water? (a) cooking oil (b) table salt (c) small pebbles (d) sand
  36. 36.True or false: a shallow dish is needed for growing salt crystals. (a) False (b) True
  37. 37.🌊 How is salt made in salt pans by the sea? (a) salt rains down (b) sand is ground up (c) fish make it (d) sea water evaporates
  38. 38.🧺 Do we need a piece of string for growing salt crystals? (a) not needed (b) needed
  39. 39.🧈 Which of these is a change that can be undone? (a) rusting iron (b) browning lemon ink (c) cooking an egg (d) melting ice
  40. 40.🧂 Which of these does not dissolve in water? (a) baking soda (b) food colour (c) chalk powder (d) glucose powder

Answer key

  1. we keep it the same
  2. a magnet
  3. water evaporates
  4. does not dissolve
  5. False
  6. turmeric powder
  7. True
  8. True
  9. False
  10. True
  11. False
  12. bigger crystals
  13. False
  14. chalk powder
  15. sugar crystals form
  16. melting butter
  17. cannot be undone
  18. we keep it the same
  19. True
  20. sawdust
  21. table salt
  22. False
  23. True
  24. False
  25. True
  26. True
  27. a grown-up
  28. sand
  29. a magnet
  30. True
  31. yeast
  32. freezing water
  33. dissolves in water
  34. sugar
  35. table salt
  36. True
  37. sea water evaporates
  38. needed
  39. melting ice
  40. chalk powder

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