Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 816 · 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: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) powdered sugar (d) both the same
2. 2.True or false: a comb is not needed for the dissolving test. (a) True (b) False
3. 3.True or false: sand does not dissolve in water. (a) True (b) False
4. 4.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) a magnet (d) two clear glasses
5. 5.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) warm water (c) two clear glasses (d) a mirror
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) a teaspoon (c) warm water (d) two clear glasses
7. 7.🔍 Which is the odd one out? (a) chalk powder (b) baking soda (c) food colour (d) glucose powder
8. 8.True or false: powdered sugar dissolves slower. (a) False (b) True
9. 9.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
10. 10.⚖️ 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 change it (c) we keep it the same
11. 11.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) time to dissolve (c) the stirring (d) the water temperature
13. 13.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a comb (c) sugar (d) a magnet
14. 14.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) warm water (c) cold water (d) a magnet
15. 15.True or false: cooking oil does not dissolve in water. (a) False (b) True
16. 16.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
17. 17.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) honey (d) two clear glasses
18. 18.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
19. 19.True or false: a mirror is not needed for the dissolving test. (a) False (b) True
20. 20.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) particles move faster (d) sugar likes the dark
21. 21.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) glucose powder (d) table salt
22. 22.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) cold water (c) cotton wool (d) two clear glasses
23. 23.🛟 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
24. 24.🔮 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) all of it dissolves (c) the water turns solid (d) some stays undissolved
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is kept the same. (a) False (b) True
26. 26.⚖️ 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
27. 27.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) poke it with a finger (d) look for leftover grains
28. 28.True or false: sugar is not needed for the dissolving test. (a) False (b) True
29. 29.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) a clock or timer (c) sugar (d) a mirror
30. 30.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) cooking oil (d) chalk powder
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
32. 32.True or false: sugar in warm water dissolves slower. (a) True (b) False
33. 33.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
34. 34.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
35. 35.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) sand (d) glucose powder
36. 36.🥄 Which of these dissolves in water? (a) small pebbles (b) chalk powder (c) sawdust (d) glucose powder
37. 37.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) sugar in warm water (d) powdered sugar
38. 38.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a balloon (c) cotton wool (d) honey
39. 39.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
40. 40.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) sugar in warm water (d) a big sugar cube

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