Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 505 · 40 questions

What you do (Warm, stir, small): 1. An adult pours the same amount of warm water and cold water into two glasses. 2. Add one level teaspoon of sugar to each at the same time. 3. Stir each the same number of times and time how long the sugar takes to vanish. 4. Look, do not taste — then compare the two times.

1. 1.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) the water turns solid (c) some stays undissolved (d) all of it dissolves
2. 2.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a teaspoon (c) cotton wool (d) warm water
3. 3.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
4. 4.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
5. 5.🔍 Which is the odd one out? (a) sugar (b) sand (c) sawdust (d) chalk powder
6. 6.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) honey (c) warm water (d) a clock or timer
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) time to dissolve (b) the amount of water (c) the water temperature (d) the amount of sugar
8. 8.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
9. 9.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it spread in the water (c) it became air (d) it sank as sand
10. 10.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a comb (d) a teaspoon
12. 12.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
13. 13.🔍 Which is the odd one out? (a) cooking oil (b) sawdust (c) chalk powder (d) table salt
14. 14.True or false: cooking oil does not dissolve in water. (a) False (b) True
15. 15.True or false: sugar is not needed for the dissolving test. (a) False (b) True
16. 16.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) two clear glasses (c) a balloon (d) a clock or timer
17. 17.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar in icy water
18. 18.True or false: a mirror is needed for the dissolving test. (a) True (b) False
19. 19.True or false: a magnet is needed for the dissolving test. (a) True (b) False
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
22. 22.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.🧺 Do we need a comb for the dissolving test? (a) needed (b) not needed
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.True or false: a big sugar cube dissolves faster. (a) False (b) True
28. 28.True or false: small pebbles does not dissolve in water. (a) True (b) False
29. 29.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
30. 30.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
31. 31.True or false: sugar stirred well dissolves slower. (a) False (b) True
32. 32.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) keep it in a fridge (d) stir it more
33. 33.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
34. 34.True or false: sawdust does not dissolve in water. (a) False (b) True
35. 35.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
36. 36.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) warm water (c) cotton wool (d) honey
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) False (b) True
38. 38.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) chalk powder (d) food colour
39. 39.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) chalk powder (d) sugar
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it

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