Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 86 · 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 of these dissolves in water? (a) cooking oil (b) baking soda (c) sand (d) chalk powder
2. 2.🔍 Which is the odd one out? (a) sawdust (b) sand (c) baking soda (d) chalk powder
3. 3.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a friend who is running (c) a grown-up (d) the youngest child
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the kind of sugar (b) the water temperature (c) the stirring (d) time to dissolve
5. 5.🔍 Which is the odd one out? (a) sawdust (b) small pebbles (c) chalk powder (d) glucose powder
6. 6.True or false: cooking oil dissolves in water. (a) False (b) True
7. 7.⚖️ 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 keep it the same (c) we measure it
8. 8.True or false: warm water is not needed for the dissolving test. (a) True (b) False
9. 9.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
10. 10.🧺 Do we need cotton wool for the dissolving test? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) a clock or timer (c) a balloon (d) a teaspoon
12. 12.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in warm water (d) sugar left unstirred
13. 13.🥄 Which of these does not dissolve in water? (a) sand (b) baking soda (c) food colour (d) sugar
14. 14.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) cold water (c) a mirror (d) two clear glasses
15. 15.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
16. 16.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) slower (d) faster
17. 17.🔍 Which is the odd one out? (a) food colour (b) baking soda (c) sawdust (d) table salt
18. 18.True or false: honey is needed for the dissolving test. (a) True (b) False
19. 19.🛟 How should you check if the sugar has dissolved? (a) taste it (b) smell it closely (c) look for leftover grains (d) poke it with a finger
20. 20.⚖️ 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 keep it the same (c) we change it
21. 21.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
22. 22.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a crystal (d) a solution
23. 23.True or false: sugar dissolves in water. (a) False (b) True
24. 24.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
25. 25.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.🥄 Which of these dissolves in water? (a) sawdust (b) cooking oil (c) sand (d) table salt
27. 27.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) sugar in warm water
28. 28.⚖️ 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
29. 29.🥄 Which of these does not dissolve in water? (a) food colour (b) glucose powder (c) baking soda (d) chalk powder
30. 30.True or false: food colour does not dissolve in water. (a) True (b) False
31. 31.⚖️ 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
32. 32.🔍 Which is the odd one out? (a) sugar (b) table salt (c) sand (d) baking soda
33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) a teaspoon (d) sugar
34. 34.🥄 Does sawdust dissolve in water? (a) dissolves in water (b) does not dissolve
35. 35.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
36. 36.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar stirred well (c) sugar in icy water (d) sugar left unstirred
37. 37.True or false: sugar in icy water dissolves faster. (a) False (b) True
38. 38.🔮 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
39. 39.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
40. 40.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed

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