Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 119 · 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.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
4. 4.True or false: a big sugar cube dissolves faster. (a) False (b) True
5. 5.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) the sugar cube (c) both the same (d) powdered sugar
6. 6.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) warm water (d) a balloon
7. 7.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a magnet (d) a solution
8. 8.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a mirror (c) honey (d) a teaspoon
9. 9.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) warm water is thicker (d) cold water is wet
10. 10.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) honey (d) sugar
11. 11.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) food colour (d) baking soda
12. 12.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
13. 13.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) faster (c) slower (d) the same
14. 14.True or false: glucose powder does not dissolve in water. (a) True (b) False
15. 15.True or false: baking soda does not dissolve in water. (a) False (b) True
16. 16.True or false: warm water is not needed for the dissolving test. (a) False (b) True
17. 17.🧺 Which of these is not needed for the dissolving test? (a) a teaspoon (b) two clear glasses (c) honey (d) warm water
18. 18.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a friend who is running (d) a grown-up
19. 19.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
20. 20.True or false: small pebbles does not dissolve in water. (a) False (b) True
21. 21.True or false: powdered sugar dissolves faster. (a) False (b) True
22. 22.True or false: sugar stirred well dissolves faster. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) sawdust (b) chalk powder (c) sand (d) sugar
24. 24.True or false: sugar left unstirred dissolves faster. (a) False (b) True
25. 25.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) honey (d) warm water
26. 26.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) cotton wool (c) honey (d) a comb
27. 27.🥄 Which of these does not dissolve in water? (a) small pebbles (b) sugar (c) food colour (d) glucose powder
28. 28.True or false: food colour dissolves in water. (a) False (b) True
29. 29.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) a magnet (d) sugar
30. 30.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) small pebbles (d) food colour
31. 31.⚖️ 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) True (b) False
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🔍 How can you get the salt back from salty water? (a) stir it more (b) add more water (c) keep it in a fridge (d) let the water evaporate
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 measure it (b) we keep it the same (c) we change it
35. 35.🧺 Do we need a magnet for the dissolving test? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar in icy water
38. 38.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) a mirror (d) warm water
39. 39.True or false: sand does not dissolve in water. (a) False (b) True
40. 40.🥄 Which of these dissolves slower? (a) a big sugar cube (b) powdered sugar (c) sugar stirred well (d) sugar in warm water

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