Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 547 · 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) sugar (b) sawdust (c) glucose powder (d) food colour
2. 2.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) a friend who is running (c) nobody needs to (d) a grown-up
3. 3.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of sugar (c) the amount of water (d) time to dissolve
4. 4.🛟 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
5. 5.🥄 Which of these dissolves in water? (a) sawdust (b) food colour (c) sand (d) small pebbles
6. 6.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
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 water is the one thing we change. (a) False (b) True
9. 9.🧺 Which of these is not needed for the dissolving test? (a) honey (b) sugar (c) two clear glasses (d) a teaspoon
10. 10.True or false: sugar is not needed for the dissolving test. (a) True (b) False
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) a clock or timer (d) a mirror
12. 12.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cold water (b) warm water (c) sugar (d) a comb
13. 13.True or false: sugar left unstirred dissolves faster. (a) False (b) True
14. 14.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) neither of them (d) both the same
15. 15.True or false: small pebbles dissolves in water. (a) True (b) False
16. 16.🧺 Which of these is needed for the dissolving test? (a) a magnet (b) cotton wool (c) a comb (d) a clock or timer
17. 17.🔍 Which is the odd one out? (a) sugar (b) cooking oil (c) chalk powder (d) sawdust
18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a teaspoon (c) a magnet (d) two clear glasses
19. 19.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.True or false: a balloon is needed for the dissolving test. (a) False (b) True
21. 21.⚖️ 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
22. 22.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a rainbow (d) a crystal
23. 23.🔍 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
24. 24.🥄 Which of these dissolves in water? (a) cooking oil (b) chalk powder (c) baking soda (d) small pebbles
25. 25.🔍 Which is the odd one out? (a) table salt (b) sugar (c) small pebbles (d) baking soda
26. 26.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
27. 27.🧺 Do we need warm water for the dissolving test? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.🔍 Which is the odd one out? (a) glucose powder (b) sugar (c) table salt (d) cooking oil
30. 30.True or false: table salt dissolves in water. (a) False (b) True
31. 31.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
32. 32.🔮 Predict: you keep adding sugar to a small glass of water and stirring. What happens in the end? (a) the water turns solid (b) some stays undissolved (c) the sugar turns to salt (d) all of it dissolves
33. 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.True or false: a teaspoon is not needed for the dissolving test. (a) True (b) False
35. 35.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the stirring (b) the water temperature (c) the amount of sugar (d) time to dissolve
36. 36.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
37. 37.True or false: sugar in warm water dissolves faster. (a) True (b) False
38. 38.🥄 Which of these dissolves faster? (a) sugar in warm water (b) sugar in icy water (c) a big sugar cube (d) sugar left unstirred
39. 39.🥄 Which of these dissolves slower? (a) sugar stirred well (b) sugar in warm water (c) sugar left unstirred (d) powdered sugar
40. 40.🧺 Which of these is needed for the dissolving test? (a) a balloon (b) cotton wool (c) warm water (d) honey

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