Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 408 · 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.🔍 Which is the odd one out? (a) small pebbles (b) sawdust (c) food colour (d) sand
2. 2.True or false: glucose powder does not dissolve in water. (a) True (b) False
3. 3.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
4. 4.🔍 Which is the odd one out? (a) chalk powder (b) table salt (c) cooking oil (d) sand
5. 5.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
6. 6.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the sugar turns to salt (b) some stays undissolved (c) all of it dissolves (d) the water turns solid
7. 7.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the kind of sugar (b) the water temperature (c) the amount of sugar (d) the stirring
8. 8.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) honey (b) cold water (c) a clock or timer (d) two clear glasses
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a magnet (c) sugar (d) warm water
10. 10.🧺 Which of these is needed for the dissolving test? (a) honey (b) cold water (c) a magnet (d) a balloon
11. 11.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) a magnet (c) a teaspoon (d) honey
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) False (b) True
13. 13.True or false: chalk powder dissolves in water. (a) True (b) False
14. 14.True or false: honey is not needed for the dissolving test. (a) False (b) True
15. 15.⚖️ 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
16. 16.⚖️ 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) True (b) False
17. 17.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
18. 18.True or false: sugar stirred well dissolves slower. (a) True (b) False
19. 19.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) two clear glasses (c) a clock or timer (d) sugar
20. 20.True or false: a comb is not needed for the dissolving test. (a) False (b) True
21. 21.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) taste it (c) look for leftover grains (d) poke it with a finger
22. 22.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
23. 23.⚖️ 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 stirring (d) the amount of water
24. 24.True or false: a big sugar cube dissolves faster. (a) True (b) False
25. 25.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a rainbow (c) a solution (d) a magnet
26. 26.True or false: food colour does not dissolve in water. (a) True (b) False
27. 27.True or false: a magnet is needed for the dissolving test. (a) True (b) False
28. 28.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) a clock or timer (d) a mirror
29. 29.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) cotton wool (d) a teaspoon
30. 30.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
31. 31.True or false: a balloon is needed for the dissolving test. (a) False (b) True
32. 32.True or false: sugar in icy water dissolves slower. (a) False (b) True
33. 33.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) the sugar cube (c) neither of them (d) both the same
34. 34.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
35. 35.🥄 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
36. 36.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) small pebbles (d) sawdust
37. 37.True or false: two clear glasses is needed for the dissolving test. (a) False (b) True
38. 38.🔍 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
39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
40. 40.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water

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