Dissolving Experiment Worksheet: Warm and Cold Water

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

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