Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 181 · 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.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a magnet (c) a teaspoon (d) two clear glasses
2. 2.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
3. 3.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) cold water (c) warm water (d) a clock or timer
4. 4.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) baking soda (d) cooking oil
5. 5.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
6. 6.True or false: sugar in warm water dissolves faster. (a) False (b) True
7. 7.True or false: baking soda dissolves in water. (a) False (b) True
8. 8.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it sank as sand (c) it vanished for ever (d) it became air
9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
10. 10.⚖️ 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
11. 11.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) the sugar turns to salt (d) all of it dissolves
12. 12.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
13. 13.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a clock or timer (c) a comb (d) a magnet
14. 14.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) warm water (d) a comb
15. 15.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
16. 16.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) sugar likes the dark (c) warm water is thicker (d) cold water is wet
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) two clear glasses (c) cold water (d) a teaspoon
18. 18.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
19. 19.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
20. 20.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) food colour (d) small pebbles
21. 21.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
22. 22.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
23. 23.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) both the same (c) powdered sugar (d) neither of them
24. 24.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) a balloon (d) sugar
25. 25.🥄 Which of these does not dissolve in water? (a) glucose powder (b) baking soda (c) table salt (d) sand
26. 26.True or false: a balloon is needed for the dissolving test. (a) True (b) False
27. 27.⚖️ 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
28. 28.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it
29. 29.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) True (b) False
31. 31.🥄 Which of these dissolves in water? (a) sugar (b) sand (c) sawdust (d) cooking oil
32. 32.🔍 Which is the odd one out? (a) sugar (b) sawdust (c) baking soda (d) table salt
33. 33.🔍 Which is the odd one out? (a) sugar (b) food colour (c) baking soda (d) small pebbles
34. 34.True or false: honey is not needed for the dissolving test. (a) False (b) True
35. 35.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
36. 36.⚖️ 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) the amount of sugar (c) time to dissolve (d) the water temperature
37. 37.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
38. 38.🥄 Which of these dissolves faster? (a) sugar in icy water (b) powdered sugar (c) a big sugar cube (d) sugar left unstirred
39. 39.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
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 measure it (b) we keep it the same (c) we change it

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