Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 869 · 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: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
2. 2.🔮 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) all of it dissolves (d) the sugar turns to salt
3. 3.⚖️ 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
4. 4.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar left unstirred (c) a big sugar cube (d) powdered sugar
5. 5.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) the youngest child (c) nobody needs to (d) a grown-up
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the amount of sugar (b) the stirring (c) the water temperature (d) the amount of water
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
8. 8.🥄 Which of these dissolves faster? (a) sugar stirred well (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
9. 9.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) both the same (d) neither of them
10. 10.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
11. 11.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
12. 12.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
13. 13.True or false: sugar dissolves in water. (a) True (b) False
14. 14.🔍 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 became air (d) it vanished for ever
15. 15.⚖️ 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
16. 16.🧺 Do we need a comb 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 stirring”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
19. 19.🥄 Which of these does not dissolve in water? (a) table salt (b) food colour (c) baking soda (d) small pebbles
20. 20.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) honey (c) a magnet (d) cotton wool
21. 21.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a balloon (c) cold water (d) honey
22. 22.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
23. 23.🔍 Which is the odd one out? (a) chalk powder (b) glucose powder (c) sand (d) small pebbles
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) False (b) True
25. 25.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) stir it more (d) keep it in a fridge
26. 26.🥄 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
27. 27.True or false: sugar in icy water dissolves faster. (a) False (b) True
28. 28.🥄 Which of these dissolves in water? (a) sand (b) cooking oil (c) chalk powder (d) sugar
29. 29.True or false: a comb is needed for the dissolving test. (a) False (b) True
30. 30.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
31. 31.True or false: sugar in icy water dissolves slower. (a) False (b) True
32. 32.True or false: a big sugar cube dissolves slower. (a) False (b) True
33. 33.True or false: food colour dissolves in water. (a) True (b) False
34. 34.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a balloon (d) warm water
35. 35.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a solution (c) a crystal (d) a rainbow
36. 36.⚖️ 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 kind of sugar (c) time to dissolve (d) the water temperature
37. 37.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
38. 38.🧺 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 balloon
39. 39.True or false: table salt does not dissolve in water. (a) False (b) True
40. 40.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar in warm water (d) sugar stirred well

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