Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 572 · 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.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) sawdust (d) sugar
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 water temperature (b) the amount of water (c) time to dissolve (d) the amount of sugar
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
4. 4.True or false: sand does not dissolve in water. (a) False (b) True
5. 5.⚖️ 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
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
7. 7.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
8. 8.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
9. 9.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
10. 10.True or false: warm water is not needed for the dissolving test. (a) False (b) True
11. 11.🥄 Which of these dissolves in water? (a) small pebbles (b) sand (c) table salt (d) chalk powder
12. 12.True or false: sugar left unstirred dissolves faster. (a) False (b) True
13. 13.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it spread in the water (c) it sank as sand (d) it vanished for ever
14. 14.🧺 Which of these is needed for the dissolving test? (a) cold water (b) a comb (c) a balloon (d) a magnet
15. 15.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
16. 16.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) cold water (d) honey
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cotton wool (c) cold water (d) a clock or timer
20. 20.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar in warm water (c) sugar stirred well (d) powdered sugar
21. 21.True or false: honey is needed for the dissolving test. (a) False (b) True
22. 22.True or false: cooking oil dissolves in water. (a) False (b) True
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) the stirring (c) time to dissolve (d) the water temperature
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the amount of sugar (c) the water temperature
25. 25.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
26. 26.True or false: sugar does not dissolve in water. (a) True (b) False
27. 27.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.True or false: honey is not needed for the dissolving test. (a) True (b) False
30. 30.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
31. 31.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) a balloon (d) a clock or timer
32. 32.🥄 Which of these dissolves in water? (a) chalk powder (b) food colour (c) cooking oil (d) small pebbles
33. 33.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
34. 34.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
35. 35.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a teaspoon (c) a comb (d) cotton wool
36. 36.🧺 Which of these is needed for the dissolving test? (a) sugar (b) a comb (c) honey (d) a magnet
37. 37.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) a big sugar cube (d) powdered sugar
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) cotton wool (c) a balloon (d) warm water
40. 40.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) food colour (d) cooking oil

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