Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 905 · 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) table salt (b) cooking oil (c) sawdust (d) sand
2. 2.⚖️ 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 water (d) the amount of sugar
3. 3.🔍 Which is the odd one out? (a) small pebbles (b) glucose powder (c) sugar (d) baking soda
4. 4.🔍 Which is the odd one out? (a) chalk powder (b) cooking oil (c) sawdust (d) table salt
5. 5.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) slower (d) faster
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) sugar (d) a mirror
9. 9.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
10. 10.True or false: honey is not needed for the dissolving test. (a) False (b) True
11. 11.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.🥄 Does baking soda dissolve in water? (a) dissolves in water (b) does not dissolve
13. 13.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) two clear glasses (c) a clock or timer (d) a teaspoon
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) a comb (c) two clear glasses (d) a clock or timer
15. 15.⚖️ 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
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is what we measure. (a) True (b) False
17. 17.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the sugar turns to salt (c) the water turns solid (d) all of it dissolves
18. 18.⚖️ 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
19. 19.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a balloon (c) honey (d) a teaspoon
21. 21.🥄 Does a big sugar cube dissolve faster or slower? (a) faster (b) slower
22. 22.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) baking soda (d) sawdust
23. 23.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a magnet (c) a crystal (d) a solution
24. 24.🥄 Does sugar in icy water dissolve faster or slower? (a) faster (b) slower
25. 25.True or false: glucose powder does not dissolve in water. (a) True (b) False
26. 26.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of sugar (b) the kind of sugar (c) time to dissolve (d) the water temperature
27. 27.True or false: sugar in warm water dissolves faster. (a) False (b) True
28. 28.🧺 Do we need a comb for the dissolving test? (a) not needed (b) needed
29. 29.🛟 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
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) False (b) True
31. 31.⚖️ 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
32. 32.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) two clear glasses (d) a magnet
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
34. 34.🥄 Which of these dissolves in water? (a) cooking oil (b) small pebbles (c) baking soda (d) chalk powder
35. 35.🔍 Which is the odd one out? (a) glucose powder (b) sawdust (c) baking soda (d) sugar
36. 36.🧺 Do we need a clock or timer for the dissolving test? (a) needed (b) not needed
37. 37.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
38. 38.True or false: sugar in warm water dissolves slower. (a) False (b) True
39. 39.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) stir it more (c) add more water (d) keep it in a fridge
40. 40.True or false: sugar is not needed for the dissolving test. (a) True (b) False

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