Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 519 · 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.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🔍 How can you get the salt back from salty water? (a) let the water evaporate (b) add more water (c) keep it in a fridge (d) stir it more
3. 3.True or false: sugar stirred well dissolves faster. (a) False (b) True
4. 4.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) cold water (c) warm water (d) a magnet
5. 5.🧺 Which of these is needed for the dissolving test? (a) honey (b) warm water (c) a magnet (d) a comb
6. 6.True or false: sugar dissolves in water. (a) True (b) False
7. 7.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
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) False (b) True
9. 9.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
10. 10.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a clock or timer (c) a magnet (d) two clear glasses
11. 11.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) not at all (d) the same
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) warm water (c) a mirror (d) cold water
13. 13.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) time to dissolve (b) the water temperature (c) the amount of water (d) the stirring
14. 14.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) some stays undissolved (b) the water turns solid (c) all of it dissolves (d) the sugar turns to salt
15. 15.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) a grown-up (d) nobody needs to
16. 16.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
17. 17.True or false: food colour does not dissolve in water. (a) False (b) True
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
19. 19.🧺 Do we need a teaspoon for the dissolving test? (a) not needed (b) needed
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
21. 21.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) sugar left unstirred (d) a big sugar cube
22. 22.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) a mirror (d) a teaspoon
23. 23.🥄 Which of these dissolves in water? (a) baking soda (b) sand (c) chalk powder (d) cooking oil
24. 24.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
25. 25.True or false: cotton wool is needed for the dissolving test. (a) True (b) False
26. 26.🧺 Which of these is not needed for the dissolving test? (a) sugar (b) two clear glasses (c) a clock or timer (d) a mirror
27. 27.🛟 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
28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) True (b) False
29. 29.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is the one thing we change. (a) True (b) False
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.True or false: baking soda dissolves in water. (a) False (b) True
32. 32.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the amount of sugar”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.⚖️ 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 stirring (c) the water temperature
34. 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.True or false: sugar in icy water dissolves faster. (a) False (b) True
36. 36.True or false: cold water is needed for the dissolving test. (a) True (b) False
37. 37.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
38. 38.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) sugar (b) baking soda (c) table salt (d) small pebbles
40. 40.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids