Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 874 · 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? True or false: the kind of salt is the one thing we change. (a) False (b) True
2. 2.🧈 Can this change be undone: milk turning to curd? (a) cannot be undone (b) can be undone
3. 3.True or false: browning lemon ink is a change that can be undone. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) sugar (b) sand (c) food colour (d) table salt
5. 5.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) warm water (b) a battery cell (c) salt (d) a shallow dish
6. 6.⚖️ 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) True (b) False
7. 7.🧂 Which of these does not dissolve in water? (a) table salt (b) baking soda (c) food colour (d) chalk powder
8. 8.⚖️ 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 water (b) sunny or shady place (c) days to see crystals (d) the kind of salt
9. 9.⚖️ 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 change it (b) we measure it (c) we keep it the same
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: the amount of water is the one thing we change. (a) False (b) True
12. 12.True or false: yeast is needed for growing salt crystals. (a) True (b) False
13. 13.🧺 Which of these is needed for growing salt crystals? (a) a mirror (b) a balloon (c) a battery cell (d) a spoon
14. 14.🧈 Which of these is a change that can be undone? (a) browning lemon ink (b) baking a cake (c) rusting iron (d) freezing water
15. 15.🛟 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
16. 16.⚖️ 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 change it (b) we measure it (c) we keep it the same
17. 17.🔮 Predict: you use sugar instead of salt. What happens as it dries? (a) sugar crystals form (b) it turns to oil (c) salt crystals form (d) it turns to butter
18. 18.True or false: a balloon is not needed for growing salt crystals. (a) False (b) True
19. 19.True or false: chalk powder dissolves in water. (a) False (b) True
20. 20.🧺 Do we need salt for growing salt crystals? (a) needed (b) not needed
21. 21.🧈 Can this change be undone: rusting iron? (a) can be undone (b) cannot be undone
22. 22.🧈 Which of these is a change that can be undone? (a) baking a cake (b) rusting iron (c) milk turning to curd (d) dissolving salt
23. 23.🧈 Can this change be undone: folding paper? (a) can be undone (b) cannot be undone
24. 24.🧂 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
25. 25.🧂 Why do crystals appear as the dish dries? (a) the dish melts (b) water evaporates (c) salt grows roots (d) salt eats water
26. 26.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a spoon (c) turmeric powder (d) salt
27. 27.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) milk turning to curd (c) melting ice (d) rusting iron
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 what we measure. (a) True (b) False
29. 29.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? True or false: days to see crystals is kept the same. (a) False (b) True
30. 30.⚖️ 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 measure it (b) we change it (c) we keep it the same
31. 31.🧺 Do we need a shallow dish for growing salt crystals? (a) not needed (b) needed
32. 32.⚖️ 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 keep it the same (b) we measure it (c) we change it
33. 33.🧈 Can this change be undone: melting butter? (a) cannot be undone (b) can be undone
34. 34.🧺 Which of these is not needed for growing salt crystals? (a) salt (b) a piece of string (c) a battery cell (d) warm water
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 what we measure. (a) False (b) True
36. 36.🛟 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
37. 37.📘 What do we call a solution that cannot dissolve any more salt? (a) magnetic (b) empty (c) frozen (d) saturated
38. 38.🧺 Do we need a balloon for growing salt crystals? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) cooking oil (d) sugar
40. 40.⚖️ 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

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