Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 940 · 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) sawdust (b) food colour (c) table salt (d) glucose powder
2. 2.🧺 Do we need two clear glasses for the dissolving test? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) sugar (b) table salt (c) chalk powder (d) baking soda
4. 4.True or false: cooking oil does not dissolve in water. (a) True (b) False
5. 5.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) powdered sugar (b) neither of them (c) the sugar cube (d) both the same
6. 6.🔍 Which is the odd one out? (a) baking soda (b) sawdust (c) sand (d) small pebbles
7. 7.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
8. 8.True or false: glucose powder does not dissolve in water. (a) True (b) False
9. 9.True or false: sugar is not needed for the dissolving test. (a) False (b) True
10. 10.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) time to dissolve (c) the kind of sugar (d) the amount of sugar
12. 12.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we keep it the same (b) we measure it (c) we change it
14. 14.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) all of it dissolves (c) the sugar turns to salt (d) some stays undissolved
15. 15.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) faster (d) the same
16. 16.🥄 Which of these does not dissolve in water? (a) food colour (b) cooking oil (c) sugar (d) glucose powder
17. 17.True or false: sugar in icy water dissolves faster. (a) True (b) False
18. 18.True or false: sugar in warm water dissolves faster. (a) True (b) False
19. 19.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) two clear glasses (c) warm water (d) honey
20. 20.🥄 Which of these dissolves in water? (a) sand (b) food colour (c) cooking oil (d) sawdust
21. 21.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
22. 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
23. 23.True or false: table salt does not dissolve in water. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) glucose powder (d) table salt
25. 25.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
26. 26.🔍 Which is the odd one out? (a) small pebbles (b) chalk powder (c) glucose powder (d) sand
27. 27.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar left unstirred (c) sugar in icy water (d) sugar in warm water
28. 28.⚖️ 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
29. 29.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) taste it (d) smell it closely
30. 30.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a balloon (d) sugar
31. 31.🔍 Which is the odd one out? (a) sawdust (b) sugar (c) small pebbles (d) sand
32. 32.⚖️ 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) False (b) True
33. 33.True or false: food colour dissolves in water. (a) True (b) False
34. 34.True or false: sugar left unstirred dissolves faster. (a) False (b) True
35. 35.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar in warm water (d) sugar stirred well
36. 36.⚖️ 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) the stirring (c) time to dissolve
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🧺 Which of these is not needed for the dissolving test? (a) a magnet (b) two clear glasses (c) a clock or timer (d) a teaspoon
39. 39.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) a teaspoon (c) a clock or timer (d) a balloon
40. 40.True or false: a magnet is needed for the dissolving test. (a) True (b) False

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