Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 289 · 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) warm water (b) cotton wool (c) a clock or timer (d) a teaspoon
2. 2.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
3. 3.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
4. 4.🛟 How should you check if the sugar has dissolved? (a) taste it (b) look for leftover grains (c) poke it with a finger (d) smell it closely
5. 5.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a balloon (c) cold water (d) a teaspoon
6. 6.🔍 Which is the odd one out? (a) chalk powder (b) sugar (c) table salt (d) glucose powder
7. 7.🥄 Does glucose powder dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🛟 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
9. 9.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) not at all (c) the same (d) slower
10. 10.🔍 Which is the odd one out? (a) food colour (b) sawdust (c) glucose powder (d) sugar
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) time to dissolve (b) the water temperature (c) the amount of sugar (d) the amount of water
12. 12.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is what we measure. (a) False (b) True
13. 13.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) let the water evaporate (c) stir it more (d) add more water
14. 14.🔍 Which is the odd one out? (a) food colour (b) chalk powder (c) small pebbles (d) cooking oil
15. 15.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
16. 16.True or false: baking soda does not dissolve in water. (a) True (b) False
17. 17.🧺 Which of these is needed for the dissolving test? (a) warm water (b) honey (c) a magnet (d) cotton wool
18. 18.True or false: powdered sugar dissolves slower. (a) False (b) True
19. 19.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in icy water (c) powdered sugar (d) sugar in warm water
20. 20.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
21. 21.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we measure it (b) we change it (c) we keep it the same
22. 22.True or false: sugar in warm water dissolves faster. (a) False (b) True
23. 23.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
24. 24.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a magnet (b) two clear glasses (c) cold water (d) a clock or timer
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a comb (d) a clock or timer
28. 28.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
29. 29.True or false: sawdust does not dissolve in water. (a) False (b) True
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) sugar (c) honey (d) a teaspoon
31. 31.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) two clear glasses (d) cotton wool
32. 32.True or false: a comb is needed for the dissolving test. (a) False (b) True
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the kind of sugar (b) time to dissolve (c) the water temperature
34. 34.⚖️ 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
35. 35.⚖️ 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 kind of sugar (c) the water temperature (d) the amount of sugar
36. 36.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) a teaspoon (d) a magnet
37. 37.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) a comb (c) a mirror (d) sugar
38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) the sugar cube (d) neither of them
40. 40.🥄 Which of these does not dissolve in water? (a) glucose powder (b) food colour (c) small pebbles (d) sugar

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