Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 218 · 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) sugar (d) a clock or timer
2. 2.True or false: sugar in warm water dissolves slower. (a) False (b) True
3. 3.True or false: sugar in icy water dissolves faster. (a) True (b) False
4. 4.⚖️ 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
5. 5.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
6. 6.🛟 Who should pour the warm water in the dissolving test? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
7. 7.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
8. 8.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is what we measure. (a) True (b) False
9. 9.⚖️ 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
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.🥄 Does sand dissolve in water? (a) dissolves in water (b) does not dissolve
12. 12.🥄 Why does sugar dissolve faster in warm water? (a) sugar likes the dark (b) particles move faster (c) cold water is wet (d) warm water is thicker
13. 13.True or false: a mirror is needed for the dissolving test. (a) True (b) False
14. 14.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) cold water (c) two clear glasses (d) a balloon
15. 15.⚖️ 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 amount of water (c) time to dissolve
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.📘 What do we call water with sugar dissolved in it? (a) a rainbow (b) a solution (c) a crystal (d) a magnet
18. 18.🔍 Which is the odd one out? (a) chalk powder (b) sand (c) table salt (d) small pebbles
19. 19.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) cold water (c) sugar (d) cotton wool
20. 20.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it vanished for ever (b) it sank as sand (c) it became air (d) it spread in the water
21. 21.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
22. 22.True or false: baking soda dissolves in water. (a) False (b) True
23. 23.⚖️ 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
24. 24.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is kept the same. (a) True (b) False
25. 25.🥄 Does sugar dissolve in water? (a) does not dissolve (b) dissolves in water
26. 26.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
27. 27.🔮 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
28. 28.🥄 Which of these dissolves slower? (a) sugar in icy water (b) sugar stirred well (c) sugar in warm water (d) powdered sugar
29. 29.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
30. 30.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
31. 31.🥄 Which of these dissolves in water? (a) small pebbles (b) cooking oil (c) food colour (d) chalk powder
32. 32.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) poke it with a finger (c) taste it (d) look for leftover grains
33. 33.🥄 Which of these dissolves faster? (a) powdered sugar (b) a big sugar cube (c) sugar in icy water (d) sugar left unstirred
34. 34.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
35. 35.🔍 How can you get the salt back from salty water? (a) add more water (b) let the water evaporate (c) keep it in a fridge (d) stir it more
36. 36.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) the same (b) not at all (c) faster (d) slower
37. 37.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the stirring (b) time to dissolve (c) the water temperature
38. 38.True or false: small pebbles dissolves in water. (a) True (b) False
39. 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a comb (b) two clear glasses (c) warm water (d) cold water
40. 40.True or false: glucose powder dissolves in water. (a) True (b) False

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