Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 983 · 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) cotton wool (b) a teaspoon (c) warm water (d) sugar
2. 2.⚖️ 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
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) stir it more (d) let the water evaporate
5. 5.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
6. 6.True or false: cooking oil does not dissolve in water. (a) True (b) False
7. 7.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
8. 8.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) neither of them (c) the sugar cube (d) powdered sugar
9. 9.True or false: a clock or timer is needed for the dissolving test. (a) False (b) True
10. 10.True or false: powdered sugar dissolves slower. (a) True (b) False
11. 11.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar in warm water (c) powdered sugar (d) sugar stirred well
12. 12.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) poke it with a finger (d) smell it closely
13. 13.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) sawdust (b) cooking oil (c) sand (d) baking soda
15. 15.⚖️ 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 measure it (c) we keep it the same
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the stirring (c) the kind of sugar (d) the amount of sugar
17. 17.🥄 Which of these dissolves faster? (a) sugar stirred well (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
18. 18.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it became air (c) it sank as sand (d) it vanished for ever
19. 19.True or false: a comb is not needed for the dissolving test. (a) True (b) False
20. 20.True or false: a big sugar cube dissolves slower. (a) False (b) True
21. 21.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) a clock or timer (c) two clear glasses (d) a teaspoon
22. 22.🥄 Which of these does not dissolve in water? (a) small pebbles (b) glucose powder (c) food colour (d) sugar
23. 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.True or false: sugar left unstirred dissolves slower. (a) False (b) True
25. 25.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
26. 26.🔍 Which is the odd one out? (a) baking soda (b) glucose powder (c) chalk powder (d) sugar
27. 27.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
28. 28.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
29. 29.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar in warm water (d) sugar left unstirred
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) two clear glasses (c) a clock or timer (d) a mirror
31. 31.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a teaspoon (c) sugar (d) a comb
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) a magnet (d) sugar
33. 33.🥄 Which of these dissolves in water? (a) cooking oil (b) sand (c) baking soda (d) small pebbles
34. 34.⚖️ 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 amount of water (c) the water temperature (d) the kind of sugar
35. 35.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) a mirror (d) a teaspoon
36. 36.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water
37. 37.True or false: sugar dissolves in water. (a) True (b) False
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) False (b) True
39. 39.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
40. 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True

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