Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 988 · 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.🧺 Do we need turmeric powder for growing salt crystals? (a) needed (b) not needed
2. 2.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) warm water (c) yeast (d) a spoon
3. 3.🧂 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
4. 4.⚖️ 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
5. 5.🧂 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
6. 6.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the kind of salt”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.🧈 Can this change be undone: cooking an egg? (a) cannot be undone (b) can be undone
8. 8.⚖️ 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 measure it (b) we keep it the same (c) we change it
9. 9.True or false: melting ice is a change that can be undone. (a) True (b) False
10. 10.🛟 Where should you keep the crystal dish while it dries? (a) on the edge of a table (b) next to the baby (c) safe from small children (d) in a busy doorway
11. 11.🧈 Which of these is a change that cannot be undone? (a) freezing water (b) melting butter (c) cooking an egg (d) melting ice
12. 12.True or false: food colour does not dissolve in water. (a) True (b) False
13. 13.⚖️ 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 kind of salt (c) days to see crystals
14. 14.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is kept the same. (a) False (b) True
15. 15.🧈 Which of these is a change that can be undone? (a) melting ice (b) cooking an egg (c) milk turning to curd (d) browning lemon ink
16. 16.True or false: warm water is not needed for growing salt crystals. (a) True (b) False
17. 17.🧺 Do we need a magnet for growing salt crystals? (a) not needed (b) needed
18. 18.True or false: table salt does not dissolve in water. (a) True (b) False
19. 19.True or false: turmeric powder is not needed for growing salt crystals. (a) True (b) False
20. 20.🧂 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) a shallow dish (c) a magnet (d) a balloon
22. 22.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) salt crystals form (b) it turns to oil (c) it turns to butter (d) sugar crystals form
23. 23.🧺 Do we need a battery cell for growing salt crystals? (a) not needed (b) needed
24. 24.🧈 Which of these is a change that cannot be undone? (a) browning lemon ink (b) melting butter (c) melting ice (d) folding paper
25. 25.🔮 Predict: you cover the dish so no water can escape. What happens? (a) it turns sweet (b) few or no crystals (c) it fizzes (d) crystals grow faster
26. 26.⚖️ 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
27. 27.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a magnet (b) salt (c) a spoon (d) a shallow dish
28. 28.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) the amount of salt (b) sunny or shady place (c) days to see crystals
29. 29.🛟 Who should pour the warm water for the crystal experiment? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
30. 30.🧈 Can this change be undone: folding paper? (a) cannot be undone (b) can be undone
31. 31.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) warm water (c) a balloon (d) a mirror
32. 32.🧂 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
33. 33.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) table salt (d) chalk powder
34. 34.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
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.⚖️ 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
37. 37.True or false: baking soda dissolves in water. (a) True (b) False
38. 38.True or false: sawdust does not dissolve in water. (a) True (b) False
39. 39.True or false: small pebbles does not dissolve in water. (a) True (b) False
40. 40.True or false: yeast is needed for growing salt crystals. (a) False (b) True

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