Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 880 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) time to dissolve (c) the amount of water (d) the kind of sugar
2. 2.🥄 Which of these does not dissolve in water? (a) table salt (b) sand (c) baking soda (d) glucose powder
3. 3.True or false: a clock or timer is not needed for the dissolving test. (a) True (b) False
4. 4.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) powdered sugar (d) both the same
5. 5.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) honey (c) sugar (d) a clock or timer
6. 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) cold water (d) honey
7. 7.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
8. 8.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) slower (d) faster
9. 9.🧺 Which of these is needed for the dissolving test? (a) a comb (b) warm water (c) a magnet (d) a balloon
10. 10.🥄 Which of these does not dissolve in water? (a) sugar (b) food colour (c) small pebbles (d) baking soda
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we change it (b) we keep it the same (c) we measure it
12. 12.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) a clock or timer (c) cold water (d) two clear glasses
13. 13.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
14. 14.⚖️ 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) True (b) False
15. 15.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it vanished for ever (d) it spread in the water
16. 16.True or false: a comb is not needed for the dissolving test. (a) True (b) False
17. 17.True or false: a balloon is needed for the dissolving test. (a) True (b) False
18. 18.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) keep it in a fridge (d) stir it more
19. 19.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) the sugar turns to salt (d) all of it dissolves
20. 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) warm water (c) a teaspoon (d) cold water
21. 21.True or false: sugar left unstirred dissolves slower. (a) False (b) True
22. 22.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
23. 23.🥄 Which of these dissolves in water? (a) sugar (b) small pebbles (c) sand (d) chalk powder
24. 24.🔍 Which is the odd one out? (a) sawdust (b) baking soda (c) chalk powder (d) small pebbles
25. 25.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a crystal (c) a magnet (d) a solution
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
29. 29.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in warm water (c) sugar left unstirred (d) sugar in icy water
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) glucose powder (b) food colour (c) small pebbles (d) sugar
32. 32.True or false: warm water is not needed for the dissolving test. (a) False (b) True
33. 33.True or false: cooking oil dissolves in water. (a) False (b) True
34. 34.🥄 Which of these does not dissolve in water? (a) food colour (b) chalk powder (c) table salt (d) baking soda
35. 35.🧺 Which of these is not needed for the dissolving test? (a) a comb (b) a clock or timer (c) two clear glasses (d) sugar
36. 36.True or false: sugar does not dissolve in water. (a) False (b) True
37. 37.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) table salt (d) chalk powder
38. 38.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
39. 39.True or false: sugar in icy water dissolves faster. (a) True (b) False
40. 40.⚖️ 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 kind of sugar

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