Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 336 · 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.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the amount of water (c) the water temperature (d) the amount of sugar
3. 3.True or false: sugar in icy water dissolves slower. (a) False (b) True
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
5. 5.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
6. 6.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
7. 7.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) faster (c) slower (d) not at all
9. 9.🔍 Which is the odd one out? (a) cooking oil (b) table salt (c) sawdust (d) chalk powder
10. 10.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) a big sugar cube (d) sugar stirred well
11. 11.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
13. 13.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
14. 14.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) sand (d) sugar
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
16. 16.🥄 Which of these does not dissolve in water? (a) cooking oil (b) sugar (c) baking soda (d) glucose powder
17. 17.True or false: small pebbles dissolves in water. (a) True (b) False
18. 18.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
19. 19.🔍 Which is the odd one out? (a) baking soda (b) food colour (c) glucose powder (d) sawdust
20. 20.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
21. 21.🧺 Which of these is needed for the dissolving test? (a) honey (b) a magnet (c) cold water (d) a comb
22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
23. 23.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) two clear glasses (d) honey
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we keep it the same (c) we change it
26. 26.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
27. 27.True or false: a magnet is needed for the dissolving test. (a) False (b) True
28. 28.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar in warm water (d) sugar stirred well
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) the water temperature (c) time to dissolve
30. 30.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it became air (d) it sank as sand
31. 31.True or false: powdered sugar dissolves faster. (a) False (b) True
32. 32.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) honey (d) a clock or timer
33. 33.True or false: sugar stirred well dissolves slower. (a) True (b) False
34. 34.True or false: table salt does not dissolve in water. (a) False (b) True
35. 35.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
36. 36.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) False (b) True
38. 38.🔮 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
39. 39.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) cold water is wet (c) sugar likes the dark (d) warm water is thicker
40. 40.True or false: sugar in warm water dissolves faster. (a) True (b) False

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