← Growing salt crystals lesson New set →

Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 407 · 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? Which of these is what we measure? (a) the amount of salt (b) the amount of water (c) sunny or shady place (d) days to see crystals
  2. 2.True or false: a battery cell is not needed for growing salt crystals. (a) True (b) False
  3. 3.True or false: glucose powder dissolves in water. (a) True (b) False
  4. 4.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) milk turning to curd (c) browning lemon ink (d) melting butter
  5. 5.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) sand (d) sugar
  6. 6.True or false: a piece of string is needed for growing salt crystals. (a) True (b) False
  7. 7.True or false: freezing water is a change that can be undone. (a) True (b) False
  8. 8.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) it fizzes (c) few or no crystals (d) crystals grow faster
  9. 9.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a spoon (c) a shallow dish (d) a magnet
  10. 10.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) small pebbles (d) table salt
  11. 11.🧈 Can this change be undone: cooking an egg? (a) cannot be undone (b) can be undone
  12. 12.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) warm water (c) a balloon (d) a shallow dish
  13. 13.🧈 Can this change be undone: browning lemon ink? (a) cannot be undone (b) can be undone
  14. 14.🧂 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
  15. 15.🧂 Which of these dissolves in water? (a) chalk powder (b) sand (c) small pebbles (d) glucose powder
  16. 16.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) warm water (c) a battery cell (d) a piece of string
  17. 17.⚖️ 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
  18. 18.True or false: warm water is needed for growing salt crystals. (a) True (b) False
  19. 19.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) food colour (d) sugar
  20. 20.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
  21. 21.🔍 Which is the odd one out? (a) baking soda (b) sand (c) sugar (d) food colour
  22. 22.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) a mirror (c) a spoon (d) a piece of string
  23. 23.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
  24. 24.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) sugar (d) table salt
  25. 25.⚖️ 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 keep it the same (b) we change it (c) we measure it
  26. 26.🛟 Where should you keep the crystal dish while it dries? (a) next to the baby (b) safe from small children (c) on the edge of a table (d) in a busy doorway
  27. 27.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) sawdust (d) food colour
  28. 28.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
  29. 29.🧈 Which of these is a change that cannot be undone? (a) folding paper (b) dissolving salt (c) browning lemon ink (d) melting ice
  30. 30.🧈 Can this change be undone: rusting iron? (a) cannot be undone (b) can be undone
  31. 31.True or false: salt is needed for growing salt crystals. (a) False (b) True
  32. 32.True or false: a shallow dish is not needed for growing salt crystals. (a) True (b) False
  33. 33.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  34. 34.🧂 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) baking soda (d) small pebbles
  35. 35.🧈 Which of these is a change that cannot be undone? (a) baking a cake (b) melting butter (c) freezing water (d) dissolving salt
  36. 36.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) the youngest child (c) a grown-up (d) nobody needs to
  37. 37.⚖️ 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
  38. 38.🧺 Which of these is not needed for growing salt crystals? (a) a balloon (b) warm water (c) a spoon (d) a piece of string
  39. 39.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) sand is ground up (c) salt rains down (d) sea water evaporates
  40. 40.True or false: small pebbles does not dissolve in water. (a) False (b) True

Answer key

  1. days to see crystals
  2. True
  3. True
  4. melting butter
  5. sugar
  6. True
  7. True
  8. few or no crystals
  9. a magnet
  10. table salt
  11. cannot be undone
  12. a balloon
  13. cannot be undone
  14. dissolves in water
  15. glucose powder
  16. a battery cell
  17. True
  18. True
  19. chalk powder
  20. not needed
  21. sand
  22. a mirror
  23. not needed
  24. sawdust
  25. we change it
  26. safe from small children
  27. food colour
  28. needed
  29. browning lemon ink
  30. cannot be undone
  31. True
  32. False
  33. dissolves in water
  34. small pebbles
  35. baking a cake
  36. a grown-up
  37. we measure it
  38. a balloon
  39. sea water evaporates
  40. True

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