Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 979 · 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.🛟 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
2. 2.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) a battery cell (c) a balloon (d) a piece of string
3. 3.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is the one thing we change? (a) sunny or shady place (b) the same dish (c) the kind of salt (d) the amount of salt
4. 4.🧈 Can this change be undone: baking a cake? (a) can be undone (b) cannot be undone
5. 5.🧺 Which of these is needed for growing salt crystals? (a) a shallow dish (b) yeast (c) a magnet (d) turmeric powder
6. 6.True or false: cooking oil dissolves in water. (a) False (b) True
7. 7.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) warm water (d) a balloon
8. 8.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) warm water (c) a balloon (d) a mirror
9. 9.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) warm water (c) salt (d) turmeric powder
10. 10.True or false: warm water is needed for growing salt crystals. (a) True (b) False
11. 11.🧂 Which of these does not dissolve in water? (a) glucose powder (b) table salt (c) baking soda (d) chalk powder
12. 12.🧂 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) warm water (c) a spoon (d) yeast
14. 14.🧺 Which of these is not needed for growing salt crystals? (a) turmeric powder (b) salt (c) warm water (d) a spoon
15. 15.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) small pebbles (d) sand
16. 16.🛟 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
17. 17.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
18. 18.📘 What do we call a solution that cannot dissolve any more salt? (a) empty (b) saturated (c) magnetic (d) frozen
19. 19.🧂 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.⚖️ 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 measure it (b) we keep it the same (c) we change it
21. 21.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) a mirror (c) a shallow dish (d) a spoon
22. 22.🧺 Which of these is not needed for growing salt crystals? (a) a battery cell (b) a piece of string (c) a spoon (d) warm water
23. 23.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a piece of string (c) a battery cell (d) a spoon
24. 24.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) cooking oil (d) table salt
25. 25.True or false: salt is needed for growing salt crystals. (a) False (b) True
26. 26.🧈 Which of these is a change that can be undone? (a) melting ice (b) rusting iron (c) milk turning to curd (d) cooking an egg
27. 27.🧈 Can this change be undone: folding paper? (a) cannot be undone (b) can be undone
28. 28.⚖️ 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 measure it (c) we keep it the same
29. 29.🧂 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
30. 30.True or false: melting ice is a change that can be undone. (a) True (b) False
31. 31.🧺 Which of these is needed for growing salt crystals? (a) a balloon (b) a mirror (c) salt (d) turmeric powder
32. 32.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it fizzes (b) it turns sweet (c) few or no crystals (d) crystals grow faster
33. 33.🧺 Do we need a shallow dish for growing salt crystals? (a) needed (b) not needed
34. 34.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) days to see crystals (b) sunny or shady place (c) the kind of salt
35. 35.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the same dish is kept the same. (a) True (b) False
36. 36.True or false: sugar dissolves in water. (a) True (b) False
37. 37.🧂 Which of these dissolves in water? (a) sand (b) table salt (c) small pebbles (d) chalk powder
38. 38.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) browning lemon ink (c) melting butter (d) dissolving salt
39. 39.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
40. 40.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) rusting iron (c) browning lemon ink (d) folding paper

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