Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 851 · 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.True or false: powdered sugar dissolves slower. (a) True (b) False
2. 2.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
3. 3.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) honey (c) a balloon (d) a teaspoon
4. 4.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) cotton wool (d) warm water
5. 5.🔍 Sand is stirred into water. What do you see after a while? (a) it dissolves (b) it floats up (c) it settles at the bottom (d) it turns blue
6. 6.⚖️ 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
7. 7.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
8. 8.⚖️ 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 change it (c) we measure it
9. 9.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is what we measure. (a) False (b) True
10. 10.🧺 Which of these is needed for the dissolving test? (a) a comb (b) sugar (c) a magnet (d) honey
11. 11.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
12. 12.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
13. 13.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
14. 14.🛟 How should you check if the sugar has dissolved? (a) look for leftover grains (b) taste it (c) smell it closely (d) poke it with a finger
15. 15.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
16. 16.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
17. 17.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) both the same (d) the sugar cube
18. 18.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a crystal (c) a solution (d) a rainbow
19. 19.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
20. 20.🧺 Which of these is not needed for the dissolving test? (a) two clear glasses (b) a clock or timer (c) sugar (d) honey
21. 21.🔍 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
22. 22.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
23. 23.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) sugar in icy water
24. 24.True or false: chalk powder does not dissolve in water. (a) True (b) False
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) all of it dissolves (d) the water turns solid
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a magnet (d) a clock or timer
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
30. 30.True or false: food colour does not dissolve in water. (a) False (b) True
31. 31.🥄 Why does sugar dissolve faster in warm water? (a) particles move faster (b) warm water is thicker (c) sugar likes the dark (d) cold water is wet
32. 32.True or false: baking soda does not dissolve in water. (a) True (b) False
33. 33.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
34. 34.🧺 Do we need a magnet for the dissolving test? (a) needed (b) not needed
35. 35.True or false: table salt does not dissolve in water. (a) True (b) False
36. 36.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) sugar (c) cold water (d) honey
38. 38.🔍 Which is the odd one out? (a) small pebbles (b) sugar (c) sand (d) chalk powder
39. 39.True or false: a mirror is needed for the dissolving test. (a) True (b) False
40. 40.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a mirror (c) a balloon (d) cold water

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