Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 935 · 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.🧂 Which of these dissolves in water? (a) table salt (b) chalk powder (c) small pebbles (d) sand
2. 2.⚖️ 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 change it (c) we measure it
3. 3.True or false: turmeric powder is needed for growing salt crystals. (a) False (b) True
4. 4.🧈 Which of these is a change that cannot be undone? (a) dissolving salt (b) melting ice (c) cooking an egg (d) folding paper
5. 5.⚖️ 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) the amount of salt (b) the amount of water (c) the kind of salt (d) sunny or shady place
6. 6.🧺 Do we need a balloon for growing salt crystals? (a) not needed (b) needed
7. 7.⚖️ 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
8. 8.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) liquid crystals (b) bigger crystals (c) no crystals (d) smaller crystals
9. 9.⚖️ 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
10. 10.🧈 Which of these is a change that can be undone? (a) baking a cake (b) cooking an egg (c) melting ice (d) browning lemon ink
11. 11.True or false: warm water is needed for growing salt crystals. (a) False (b) True
12. 12.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) browning lemon ink (c) milk turning to curd (d) dissolving salt
13. 13.🛟 Where should you keep the crystal dish while it dries? (a) safe from small children (b) in a busy doorway (c) next to the baby (d) on the edge of a table
14. 14.True or false: dissolving salt is a change that can be undone. (a) True (b) False
15. 15.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) a grown-up (c) the youngest child (d) nobody needs to
16. 16.⚖️ 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) False (b) True
17. 17.🧂 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) sawdust (d) sugar
18. 18.True or false: sand does not dissolve in water. (a) True (b) False
19. 19.True or false: a shallow dish is needed for growing salt crystals. (a) False (b) True
20. 20.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) folding paper (c) melting butter (d) baking a cake
21. 21.🧺 Do we need warm water for growing salt crystals? (a) needed (b) not needed
22. 22.🧂 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.True or false: a balloon is not needed for growing salt crystals. (a) False (b) True
24. 24.🧺 Which of these is needed for growing salt crystals? (a) a magnet (b) yeast (c) a mirror (d) a shallow dish
25. 25.🧺 Which of these is needed for growing salt crystals? (a) a battery cell (b) yeast (c) a balloon (d) warm water
26. 26.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
27. 27.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sugar (d) small pebbles
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) a balloon (c) salt (d) a shallow dish
30. 30.🧂 Why do we stir in salt until no more will dissolve? (a) to cool the water (b) to make it very salty (c) to change its colour (d) to make it fizz
31. 31.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) sawdust (d) baking soda
32. 32.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.🧂 Which of these dissolves in water? (a) baking soda (b) sand (c) sawdust (d) chalk powder
34. 34.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny cubes (b) tiny triangles (c) tiny spheres (d) tiny stars
35. 35.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is the one thing we change. (a) False (b) True
36. 36.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) a magnet (c) salt (d) a spoon
37. 37.🧺 Do we need a battery cell for growing salt crystals? (a) needed (b) not needed
38. 38.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a spoon (c) a battery cell (d) warm water
39. 39.True or false: glucose powder does not dissolve in water. (a) True (b) False
40. 40.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the kind of salt is kept the same. (a) False (b) True

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