Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 620 · 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.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
2. 2.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sugar (d) chalk powder
4. 4.🥄 Which of these does not dissolve in water? (a) small pebbles (b) baking soda (c) sugar (d) table salt
5. 5.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
6. 6.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) a clock or timer (d) cotton wool
7. 7.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) cold water (c) a balloon (d) two clear glasses
8. 8.⚖️ 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) True (b) False
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) two clear glasses (c) warm water (d) a balloon
10. 10.🥄 Which of these dissolves in water? (a) small pebbles (b) food colour (c) chalk powder (d) sawdust
11. 11.⚖️ 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
12. 12.🔍 Which is the odd one out? (a) small pebbles (b) table salt (c) glucose powder (d) sugar
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) True (b) False
14. 14.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
15. 15.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a magnet (d) a rainbow
16. 16.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
17. 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
18. 18.True or false: sugar in warm water dissolves faster. (a) False (b) True
19. 19.True or false: powdered sugar dissolves slower. (a) True (b) False
20. 20.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
21. 21.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
23. 23.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) not at all (d) slower
24. 24.True or false: a big sugar cube dissolves slower. (a) True (b) False
25. 25.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it became air (b) it vanished for ever (c) it sank as sand (d) it spread in the water
26. 26.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
27. 27.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
28. 28.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) cotton wool (d) a teaspoon
29. 29.⚖️ 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
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) a magnet (d) a teaspoon
31. 31.True or false: sawdust dissolves in water. (a) False (b) True
32. 32.🥄 Which of these dissolves in water? (a) sawdust (b) sand (c) chalk powder (d) table salt
33. 33.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a magnet (c) a mirror (d) a balloon
34. 34.⚖️ 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
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) False (b) True
36. 36.⚖️ 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
37. 37.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
38. 38.🥄 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
39. 39.True or false: a magnet is needed for the dissolving test. (a) False (b) True
40. 40.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster

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