Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 624 · 40 questions

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.

1. 1.True or false: baking soda does not dissolve in water. (a) False (b) True
2. 2.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
3. 3.True or false: a magnet is not needed for growing salt crystals. (a) False (b) True
4. 4.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a battery cell (c) a piece of string (d) salt
5. 5.🧈 Which of these is a change that can be undone? (a) rusting iron (b) melting butter (c) milk turning to curd (d) baking a cake
6. 6.🔍 Which is the odd one out? (a) cooking oil (b) food colour (c) table salt (d) sugar
7. 7.🧂 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) salt (c) turmeric powder (d) a shallow dish
9. 9.⚖️ 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 keep it the same (b) we measure it (c) we change it
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.🧂 Which of these does not dissolve in water? (a) chalk powder (b) food colour (c) table salt (d) glucose powder
12. 12.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) a magnet (c) a piece of string (d) salt
13. 13.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
14. 14.⚖️ 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
15. 15.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) it turns to oil (b) salt crystals form (c) it turns to butter (d) sugar crystals form
16. 16.True or false: cooking oil dissolves in water. (a) True (b) False
17. 17.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
18. 18.True or false: a balloon is needed for growing salt crystals. (a) True (b) False
19. 19.⚖️ 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 kind of salt (b) the same dish (c) sunny or shady place (d) days to see crystals
20. 20.🧂 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.🧈 Can this change be undone: dissolving salt? (a) cannot be undone (b) can be undone
22. 22.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) sand (d) food colour
23. 23.🧂 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
24. 24.True or false: browning lemon ink is a change that cannot be undone. (a) True (b) False
25. 25.🧂 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
26. 26.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) on the edge of a table (c) next to the baby (d) safe from small children
27. 27.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: sunny or shady place is the one thing we change. (a) True (b) False
28. 28.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
29. 29.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of salt”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) sawdust (d) sand
31. 31.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a piece of string (c) a spoon (d) turmeric powder
32. 32.🧈 Can this change be undone: browning lemon ink? (a) can be undone (b) cannot be undone
33. 33.🧂 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
34. 34.🧺 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 mirror
35. 35.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) turmeric powder (c) a spoon (d) a mirror
36. 36.⚖️ 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
37. 37.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a piece of string (c) a balloon (d) a spoon
38. 38.True or false: table salt dissolves in water. (a) False (b) True
39. 39.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) empty (c) frozen (d) saturated
40. 40.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) small pebbles (d) sugar

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