Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 707 · 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.⚖️ 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 kind of salt (c) days to see crystals (d) sunny or shady place
2. 2.True or false: food colour does not dissolve in water. (a) True (b) False
3. 3.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
4. 4.🧂 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
5. 5.🧂 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) sugar (d) sand
6. 6.🔍 Which is the odd one out? (a) table salt (b) sand (c) cooking oil (d) sawdust
7. 7.⚖️ 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 amount of water (c) the same dish (d) the amount of salt
8. 8.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) yeast (c) warm water (d) turmeric powder
9. 9.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) salt (c) a piece of string (d) a balloon
10. 10.🧂 Which of these dissolves in water? (a) chalk powder (b) table salt (c) small pebbles (d) sand
11. 11.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny stars (b) tiny cubes (c) tiny triangles (d) tiny spheres
12. 12.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) sugar (d) baking soda
13. 13.True or false: baking a cake is a change that can be undone. (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: days to see crystals is what we measure. (a) False (b) True
15. 15.🧺 Which of these is needed for growing salt crystals? (a) a balloon (b) a shallow dish (c) yeast (d) turmeric powder
16. 16.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) cooking oil (d) sugar
19. 19.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) a shallow dish (c) a piece of string (d) a balloon
20. 20.🧂 Does baking soda dissolve in water? (a) does not dissolve (b) dissolves in water
21. 21.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) baking soda (d) small pebbles
22. 22.🧂 Which of these dissolves in water? (a) cooking oil (b) sand (c) chalk powder (d) glucose powder
23. 23.🧈 Which of these is a change that can be undone? (a) baking a cake (b) cooking an egg (c) melting butter (d) browning lemon ink
24. 24.True or false: dissolving salt is a change that can be undone. (a) True (b) False
25. 25.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) yeast (d) warm water
26. 26.🧂 Why do we stir in salt until no more will dissolve? (a) to change its colour (b) to make it fizz (c) to cool the water (d) to make it very salty
27. 27.True or false: sand dissolves in water. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) glucose powder (b) sand (c) sugar (d) table salt
29. 29.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) chalk powder (d) food colour
30. 30.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) sunny or shady place (b) the amount of water (c) days to see crystals
31. 31.True or false: a piece of string is not needed for growing salt crystals. (a) True (b) False
32. 32.True or false: cooking an egg is a change that cannot be undone. (a) False (b) True
33. 33.True or false: a piece of string is needed for growing salt crystals. (a) False (b) True
34. 34.🛟 Where should you keep the crystal dish while it dries? (a) on the edge of a table (b) next to the baby (c) in a busy doorway (d) safe from small children
35. 35.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a battery cell (c) a spoon (d) a piece of string
36. 36.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) yeast (c) a balloon (d) a piece of string
37. 37.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) cooking oil (b) chalk powder (c) sawdust (d) glucose powder
39. 39.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) freezing water (c) cooking an egg (d) dissolving salt
40. 40.🧂 Which of these does not dissolve in water? (a) food colour (b) sugar (c) chalk powder (d) table salt

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