Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 410 · 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) table salt (b) chalk powder (c) cooking oil (d) sand
2. 2.🥄 Why does sugar dissolve faster in warm water? (a) cold water is wet (b) warm water is thicker (c) particles move faster (d) sugar likes the dark
3. 3.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
4. 4.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in warm water (c) sugar in icy water (d) a big sugar cube
5. 5.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
6. 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) time to dissolve (b) the water temperature (c) the amount of water
7. 7.🥄 Which of these does not dissolve in water? (a) sand (b) food colour (c) baking soda (d) sugar
8. 8.True or false: sugar is not needed for the dissolving test. (a) True (b) False
9. 9.⚖️ 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
10. 10.⚖️ 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) time to dissolve (c) the kind of sugar
11. 11.🥄 Does powdered sugar dissolve faster or slower? (a) faster (b) slower
12. 12.True or false: food colour does not dissolve in water. (a) False (b) True
13. 13.True or false: a clock or timer is not needed for the dissolving test. (a) False (b) True
14. 14.⚖️ 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 amount of water (c) time to dissolve (d) the amount of sugar
15. 15.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) both the same (d) the sugar cube
16. 16.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) a magnet (d) cold water
18. 18.🥄 Which of these dissolves in water? (a) sand (b) small pebbles (c) sugar (d) sawdust
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is the one thing we change. (a) False (b) True
20. 20.🧺 Which of these is needed for the dissolving test? (a) honey (b) a mirror (c) sugar (d) a magnet
21. 21.🛟 How should you check if the sugar has dissolved? (a) taste it (b) poke it with a finger (c) look for leftover grains (d) smell it closely
22. 22.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
23. 23.🧺 Do we need honey for the dissolving test? (a) not needed (b) needed
24. 24.🧺 Which of these is needed for the dissolving test? (a) honey (b) a teaspoon (c) cotton wool (d) a balloon
25. 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is what we measure. (a) False (b) True
26. 26.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
27. 27.🧺 Do we need cotton wool for the dissolving test? (a) not needed (b) needed
28. 28.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
29. 29.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) slower (b) the same (c) not at all (d) faster
30. 30.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
31. 31.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) sugar (c) two clear glasses (d) cotton wool
33. 33.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
34. 34.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) sugar left unstirred (d) powdered sugar
35. 35.🔍 How can you get the salt back from salty water? (a) add more water (b) keep it in a fridge (c) stir it more (d) let the water evaporate
36. 36.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a balloon (d) cold water
37. 37.🔍 Which is the odd one out? (a) cooking oil (b) sand (c) chalk powder (d) food colour
38. 38.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) table salt (d) small pebbles
39. 39.⚖️ 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
40. 40.True or false: sawdust does not dissolve in water. (a) False (b) True

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