Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 992 · 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.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) look for leftover grains (c) smell it closely (d) taste it
2. 2.🥄 Does sugar in warm water dissolve faster or slower? (a) slower (b) faster
3. 3.🥄 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
4. 4.🔍 Which is the odd one out? (a) baking soda (b) small pebbles (c) sand (d) chalk powder
5. 5.🔍 Which is the odd one out? (a) sand (b) cooking oil (c) sawdust (d) sugar
6. 6.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) slower (c) the same (d) not at all
7. 7.True or false: a mirror is needed for the dissolving test. (a) True (b) False
8. 8.True or false: cold water is needed for the dissolving test. (a) True (b) False
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) a magnet (d) warm water
10. 10.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it spread in the water (c) it vanished for ever (d) it became air
11. 11.True or false: powdered sugar dissolves slower. (a) True (b) False
12. 12.🥄 Which of these dissolves slower? (a) sugar stirred well (b) powdered sugar (c) a big sugar cube (d) sugar in warm water
13. 13.True or false: small pebbles dissolves in water. (a) True (b) False
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) time to dissolve (c) the amount of water (d) the stirring
15. 15.🔍 Which is the odd one out? (a) sand (b) baking soda (c) food colour (d) table salt
16. 16.🥄 Which of these does not dissolve in water? (a) sugar (b) baking soda (c) sand (d) glucose powder
17. 17.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a grown-up (c) nobody needs to (d) a friend who is running
18. 18.⚖️ 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 change it (c) we measure it
19. 19.🔍 How can you get the salt back from salty water? (a) keep it in a fridge (b) stir it more (c) add more water (d) let the water evaporate
20. 20.⚖️ 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) True (b) False
21. 21.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
22. 22.🥄 Does chalk powder dissolve in water? (a) dissolves in water (b) does not dissolve
23. 23.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) powdered sugar (d) a big sugar cube
24. 24.🥄 Which of these dissolves in water? (a) cooking oil (b) sawdust (c) food colour (d) sand
25. 25.🧺 Which of these is needed for the dissolving test? (a) a clock or timer (b) a magnet (c) a balloon (d) honey
26. 26.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar left unstirred (d) sugar in warm water
27. 27.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) a teaspoon (c) two clear glasses (d) a comb
28. 28.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) glucose powder (b) chalk powder (c) baking soda (d) sugar
30. 30.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is the one thing we change. (a) False (b) True
31. 31.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (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 keep it the same (b) we change it (c) we measure it
33. 33.🔍 Which is the odd one out? (a) food colour (b) table salt (c) cooking oil (d) baking soda
34. 34.True or false: a clock or timer is needed for the dissolving test. (a) True (b) False
35. 35.🥄 Which of these dissolves in water? (a) sand (b) table salt (c) sawdust (d) chalk powder
36. 36.🥄 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
37. 37.True or false: cold water is not needed for the dissolving test. (a) False (b) True
38. 38.🧺 Do we need a balloon for the dissolving test? (a) not needed (b) needed
39. 39.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) sugar in icy water (d) powdered sugar
40. 40.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) cold water (c) warm water (d) cotton wool

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