Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 728 · 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.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny stars (b) tiny cubes (c) tiny spheres (d) tiny triangles
2. 2.⚖️ 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) the amount of water (d) days to see crystals
3. 3.🧺 Do we need yeast for growing salt crystals? (a) needed (b) not needed
4. 4.🧂 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
5. 5.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) next to the baby (c) on the edge of a table (d) safe from small children
6. 6.🛟 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
7. 7.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) turmeric powder (b) a spoon (c) warm water (d) a shallow dish
8. 8.⚖️ 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) the same dish (c) sunny or shady place
9. 9.True or false: a battery cell is needed for growing salt crystals. (a) False (b) True
10. 10.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) folding paper (c) baking a cake (d) melting butter
11. 11.🧂 Which of these dissolves in water? (a) cooking oil (b) glucose powder (c) sand (d) chalk powder
12. 12.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) smaller crystals (b) bigger crystals (c) no crystals (d) liquid crystals
13. 13.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) chalk powder (d) food colour
14. 14.⚖️ 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 measure it (b) we change it (c) we keep it the same
15. 15.True or false: dissolving salt is a change that can be undone. (a) True (b) False
16. 16.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) a spoon (c) a shallow dish (d) a balloon
17. 17.True or false: table salt dissolves in water. (a) False (b) True
18. 18.⚖️ 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 measure it (b) we change it (c) we keep it the same
19. 19.🔍 Which is the odd one out? (a) glucose powder (b) baking soda (c) table salt (d) chalk powder
20. 20.🧈 Can this change be undone: baking a cake? (a) cannot be undone (b) can be undone
21. 21.🧂 Which of these does not dissolve in water? (a) sugar (b) food colour (c) small pebbles (d) table salt
22. 22.🧈 Can this change be undone: freezing water? (a) cannot be undone (b) can be undone
23. 23.🧈 Can this change be undone: browning lemon ink? (a) can be undone (b) cannot be undone
24. 24.True or false: baking a cake is a change that can be undone. (a) False (b) True
25. 25.True or false: sand dissolves in water. (a) False (b) True
26. 26.True or false: small pebbles does not dissolve in water. (a) False (b) True
27. 27.True or false: freezing water is a change that can be undone. (a) False (b) True
28. 28.True or false: folding paper is a change that cannot be undone. (a) False (b) True
29. 29.🧂 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
30. 30.⚖️ 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
31. 31.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) salt (c) warm water (d) a magnet
32. 32.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
33. 33.🧂 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) sand (d) baking soda
34. 34.🧺 Which of these is needed for growing salt crystals? (a) a shallow dish (b) a magnet (c) a mirror (d) a battery cell
35. 35.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a spoon (b) warm water (c) a balloon (d) a shallow dish
37. 37.🧈 Can this change be undone: rusting iron? (a) cannot be undone (b) can be undone
38. 38.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is what we measure. (a) False (b) True
39. 39.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
40. 40.True or false: turmeric powder is needed for growing salt crystals. (a) True (b) False

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