Salt Crystal Experiment Worksheet

Science experiments lesson 18: Growing salt crystals · Set 655 · 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 warm water for growing salt crystals? (a) needed (b) not needed
2. 2.🧺 Which of these is needed for growing salt crystals? (a) a shallow dish (b) a mirror (c) a balloon (d) yeast
3. 3.🧂 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
4. 4.🛟 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
5. 5.🧂 Which of these does not dissolve in water? (a) sugar (b) sawdust (c) baking soda (d) table salt
6. 6.🔮 Predict: you cover the dish so no water can escape. What happens? (a) crystals grow faster (b) it turns sweet (c) few or no crystals (d) it fizzes
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a piece of string (b) salt (c) a magnet (d) a spoon
9. 9.🧂 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
10. 10.🧂 Which of these dissolves in water? (a) sand (b) cooking oil (c) food colour (d) small pebbles
11. 11.True or false: a mirror is needed for growing salt crystals. (a) False (b) True
12. 12.⚖️ 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) 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 what we measure? (a) the amount of salt (b) sunny or shady place (c) days to see crystals (d) the same dish
14. 14.⚖️ 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) False (b) True
15. 15.⚖️ 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 change it (b) we measure it (c) we keep it the same
16. 16.True or false: browning lemon ink is a change that cannot be undone. (a) False (b) True
17. 17.True or false: a battery cell is not needed for growing salt crystals. (a) False (b) True
18. 18.🧂 What shape are table salt crystals under a magnifying glass? (a) tiny spheres (b) tiny cubes (c) tiny stars (d) tiny triangles
19. 19.🔮 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
20. 20.⚖️ 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
21. 21.True or false: folding paper is a change that can be undone. (a) True (b) False
22. 22.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) salt (c) warm water (d) a balloon
23. 23.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) food colour (d) baking soda
24. 24.True or false: cooking oil does not dissolve in water. (a) True (b) False
25. 25.🧺 Which of these is not needed for growing salt crystals? (a) warm water (b) a shallow dish (c) a mirror (d) salt
26. 26.🔮 Predict: crystals grow slowly where nobody disturbs them. How big are they? (a) smaller crystals (b) liquid crystals (c) no crystals (d) bigger crystals
27. 27.⚖️ 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
28. 28.🧈 Which of these is a change that cannot be undone? (a) melting ice (b) folding paper (c) cooking an egg (d) freezing water
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) cooking oil (d) glucose powder
31. 31.⚖️ 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
32. 32.🧺 Do we need salt for growing salt crystals? (a) not needed (b) needed
33. 33.🧂 Which of these does not dissolve in water? (a) food colour (b) sugar (c) sand (d) baking soda
34. 34.True or false: a spoon is not needed for growing salt crystals. (a) True (b) False
35. 35.🧈 Which of these is a change that cannot be undone? (a) freezing water (b) baking a cake (c) folding paper (d) melting ice
36. 36.True or false: a mirror is not needed for growing salt crystals. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) sawdust (b) table salt (c) glucose powder (d) sugar
38. 38.True or false: folding paper is a change that cannot be undone. (a) True (b) False
39. 39.True or false: a piece of string is needed for growing salt crystals. (a) True (b) False
40. 40.🧂 Which of these does not dissolve in water? (a) food colour (b) table salt (c) chalk powder (d) baking soda

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