← Growing salt crystals lesson New set →

Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 612 · 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: sugar does not dissolve in water. (a) False (b) True
  2. 2.🛟 Where should you keep the crystal dish while it dries? (a) safe from small children (b) next to the baby (c) in a busy doorway (d) on the edge of a table
  3. 3.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) frozen (c) empty (d) saturated
  4. 4.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a shallow dish (c) warm water (d) a mirror
  5. 5.True or false: small pebbles does not dissolve in water. (a) True (b) False
  6. 6.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) the kind of salt (b) days to see crystals (c) sunny or shady place
  7. 7.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) rusting iron (c) baking a cake (d) folding paper
  8. 8.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it fizzes (b) few or no crystals (c) crystals grow faster (d) it turns sweet
  9. 9.True or false: milk turning to curd is a change that can be undone. (a) False (b) True
  10. 10.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to butter (b) it turns to oil (c) sugar crystals form (d) salt crystals form
  11. 11.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) a balloon (c) a shallow dish (d) salt
  12. 12.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a piece of string (c) a magnet (d) a spoon
  13. 13.True or false: a piece of string is needed for growing salt crystals. (a) True (b) False
  14. 14.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is kept the same. (a) False (b) True
  15. 15.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) salt (c) a shallow dish (d) a balloon
  16. 16.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
  17. 17.🧈 Which of these is a change that cannot be undone? (a) melting butter (b) milk turning to curd (c) melting ice (d) dissolving salt
  18. 18.🧂 Which of these dissolves in water? (a) sawdust (b) sand (c) table salt (d) chalk powder
  19. 19.🔍 Which is the odd one out? (a) sand (b) glucose powder (c) food colour (d) baking soda
  20. 20.True or false: dissolving salt is a change that can be undone. (a) False (b) True
  21. 21.True or false: folding paper is a change that can be undone. (a) True (b) False
  22. 22.True or false: a shallow dish is not needed for growing salt crystals. (a) True (b) False
  23. 23.🔍 Which is the odd one out? (a) sawdust (b) sand (c) cooking oil (d) baking soda
  24. 24.🔍 Which is the odd one out? (a) sand (b) glucose powder (c) chalk powder (d) small pebbles
  25. 25.True or false: baking a cake is a change that cannot be undone. (a) False (b) True
  26. 26.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: days to see crystals is kept the same. (a) True (b) False
  27. 27.🧂 Which of these does not dissolve in water? (a) sawdust (b) baking soda (c) table salt (d) sugar
  28. 28.True or false: sugar dissolves in water. (a) True (b) False
  29. 29.True or false: yeast is not needed for growing salt crystals. (a) False (b) True
  30. 30.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
  31. 31.🧈 Can this change be undone: melting butter? (a) cannot be undone (b) can be undone
  32. 32.🧂 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  33. 33.🧂 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) small pebbles (d) baking soda
  34. 34.🧺 Do we need a mirror for growing salt crystals? (a) needed (b) not needed
  35. 35.🧂 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
  36. 36.⚖️ 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 amount of salt (b) sunny or shady place (c) the same dish (d) days to see crystals
  37. 37.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) sea water evaporates (c) salt rains down (d) sand is ground up
  38. 38.🧺 Do we need a balloon for growing salt crystals? (a) not needed (b) needed
  39. 39.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) yeast (c) a spoon (d) salt
  40. 40.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) no crystals (b) smaller crystals (c) bigger crystals (d) liquid crystals

Answer key

  1. False
  2. safe from small children
  3. saturated
  4. a mirror
  5. True
  6. the kind of salt
  7. folding paper
  8. few or no crystals
  9. False
  10. sugar crystals form
  11. a balloon
  12. a magnet
  13. True
  14. True
  15. a balloon
  16. a grown-up
  17. milk turning to curd
  18. table salt
  19. sand
  20. True
  21. True
  22. False
  23. baking soda
  24. glucose powder
  25. True
  26. False
  27. sawdust
  28. True
  29. True
  30. not needed
  31. can be undone
  32. does not dissolve
  33. small pebbles
  34. not needed
  35. dissolves in water
  36. days to see crystals
  37. sea water evaporates
  38. not needed
  39. yeast
  40. bigger crystals

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