Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 517 · 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: a shallow dish is needed for growing salt crystals. (a) False (b) True
2. 2.True or false: a spoon is not needed for growing salt crystals. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) sawdust (b) food colour (c) small pebbles (d) sand
4. 4.🧺 Which of these is not needed for growing salt crystals? (a) a piece of string (b) a spoon (c) a magnet (d) salt
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 kind of salt (c) sunny or shady place (d) the same dish
6. 6.📘 What do we call a solution that cannot dissolve any more salt? (a) empty (b) magnetic (c) frozen (d) saturated
7. 7.True or false: a balloon is needed for growing salt crystals. (a) True (b) False
8. 8.🧂 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
9. 9.True or false: a shallow dish is not needed for growing salt crystals. (a) False (b) True
10. 10.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) cooking an egg (c) folding paper (d) rusting iron
11. 11.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) yeast (b) a piece of string (c) a spoon (d) a shallow dish
12. 12.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) days to see crystals (b) the amount of water (c) the amount of salt (d) the kind of salt
13. 13.🧺 Which of these is needed for growing salt crystals? (a) a balloon (b) a battery cell (c) turmeric powder (d) warm water
14. 14.🧺 Do we need a balloon for growing salt crystals? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a spoon (c) a balloon (d) a shallow dish
16. 16.🧂 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
17. 17.True or false: salt is needed for growing salt crystals. (a) True (b) False
18. 18.True or false: yeast is needed for growing salt crystals. (a) False (b) True
19. 19.True or false: small pebbles does not dissolve in water. (a) False (b) True
20. 20.🛟 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
21. 21.🧺 Which of these is needed for growing salt crystals? (a) a balloon (b) turmeric powder (c) yeast (d) a spoon
22. 22.⚖️ 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 salt (c) days to see crystals
23. 23.🧈 Which of these is a change that cannot be undone? (a) dissolving salt (b) melting butter (c) folding paper (d) browning lemon ink
24. 24.⚖️ 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
25. 25.True or false: a balloon is not needed for growing salt crystals. (a) False (b) True
26. 26.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) bigger crystals (b) smaller crystals (c) liquid crystals (d) no crystals
27. 27.🌊 How is salt made in salt pans by the sea? (a) fish make it (b) sea water evaporates (c) salt rains down (d) sand is ground up
28. 28.⚖️ 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
29. 29.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) table salt (d) baking soda
30. 30.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) nobody needs to (c) the youngest child (d) a friend who is running
31. 31.True or false: melting ice is a change that can be undone. (a) True (b) False
32. 32.🧂 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.⚖️ 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 keep it the same (b) we change it (c) we measure it
34. 34.🧈 Can this change be undone: cooking an egg? (a) cannot be undone (b) can be undone
35. 35.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of salt is kept the same. (a) False (b) True
36. 36.🧂 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny stars (b) tiny cubes (c) tiny spheres (d) tiny triangles
38. 38.🧺 Do we need a spoon for growing salt crystals? (a) needed (b) not needed
39. 39.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) milk turning to curd (c) rusting iron (d) freezing water
40. 40.🧂 Which of these dissolves in water? (a) chalk powder (b) table salt (c) sawdust (d) cooking oil

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