Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 234 · 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 does not dissolve in water? (a) cooking oil (b) table salt (c) glucose powder (d) food colour
2. 2.True or false: sawdust dissolves in water. (a) False (b) True
3. 3.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a magnet (d) a clock or timer
4. 4.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
5. 5.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
6. 6.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) taste it (c) smell it closely (d) look for leftover grains
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.🥄 Which of these does not dissolve in water? (a) sand (b) glucose powder (c) baking soda (d) sugar
10. 10.⚖️ 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) the stirring (c) the amount of sugar (d) time to dissolve
11. 11.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it spread in the water (b) it vanished for ever (c) it became air (d) it sank as sand
12. 12.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a magnet (c) a mirror (d) sugar
13. 13.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
14. 14.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
15. 15.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) a mirror (c) honey (d) a magnet
16. 16.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) neither of them (c) both the same (d) powdered sugar
17. 17.🔍 Which is the odd one out? (a) sugar (b) chalk powder (c) table salt (d) baking soda
18. 18.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
19. 19.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
20. 20.📘 What do we call water with sugar dissolved in it? (a) a crystal (b) a magnet (c) a solution (d) a rainbow
21. 21.🔍 Which is the odd one out? (a) chalk powder (b) small pebbles (c) sand (d) sugar
22. 22.⚖️ 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) time to dissolve (c) the water temperature (d) the stirring
23. 23.🥄 Which of these does not dissolve in water? (a) table salt (b) sugar (c) chalk powder (d) food colour
24. 24.🧺 Which of these is needed for the dissolving test? (a) a comb (b) cotton wool (c) a teaspoon (d) a mirror
25. 25.True or false: a mirror is needed for the dissolving test. (a) True (b) False
26. 26.⚖️ 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
27. 27.🥄 Which of these dissolves slower? (a) sugar in warm water (b) powdered sugar (c) sugar stirred well (d) sugar left unstirred
28. 28.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
29. 29.🥄 Which of these dissolves in water? (a) small pebbles (b) glucose powder (c) cooking oil (d) chalk powder
30. 30.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) powdered sugar (d) a big sugar cube
31. 31.🔍 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
32. 32.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) the same (c) faster (d) slower
33. 33.🥄 Which of these dissolves in water? (a) chalk powder (b) sand (c) cooking oil (d) table salt
34. 34.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
35. 35.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) a big sugar cube (d) sugar in icy water
36. 36.True or false: chalk powder does not dissolve in water. (a) True (b) False
37. 37.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
38. 38.True or false: a teaspoon is needed for the dissolving test. (a) False (b) True
39. 39.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar stirred well (c) sugar in icy water (d) a big sugar cube
40. 40.🔍 Sand is stirred into water. What do you see after a while? (a) it settles at the bottom (b) it dissolves (c) it floats up (d) it turns blue

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