Dissolving Experiment Worksheet: Warm and Cold Water
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.
NameDateTime takenScore ___ / 40
- 1.True or false: sugar left unstirred dissolves faster. (a) True (b) False
- 2.🔍 Which is the odd one out? (a) sugar (b) table salt (c) glucose powder (d) sawdust
- 3.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
- 4.🧺 Which of these is needed for the dissolving test? (a) a comb (b) a mirror (c) honey (d) a clock or timer
- 5.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a crystal (c) a rainbow (d) a magnet
- 6.🧺 Which of these is not needed for the dissolving test? (a) cold water (b) warm water (c) sugar (d) a balloon
- 7.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) faster (b) the same (c) slower (d) not at all
- 8.True or false: sand does not dissolve in water. (a) True (b) False
- 9.True or false: a teaspoon is needed for the dissolving test. (a) True (b) False
- 10.True or false: sugar stirred well dissolves slower. (a) False (b) True
- 11.True or false: warm water is not needed for the dissolving test. (a) False (b) True
- 12.🧺 Do we need a balloon for the dissolving test? (a) needed (b) not needed
- 13.True or false: table salt does not dissolve in water. (a) False (b) True
- 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the stirring is kept the same. (a) True (b) False
- 15.True or false: cooking oil dissolves in water. (a) False (b) True
- 16.True or false: two clear glasses is not needed for the dissolving test. (a) True (b) False
- 17.True or false: a magnet is needed for the dissolving test. (a) False (b) True
- 18.⚖️ 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 sugar (c) time to dissolve
- 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.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in icy water (c) sugar stirred well (d) sugar in warm water
- 21.True or false: sugar stirred well dissolves faster. (a) False (b) True
- 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is the one thing we change? (a) the stirring (b) the kind of sugar (c) time to dissolve (d) the water temperature
- 23.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
- 24.True or false: a balloon is needed for the dissolving test. (a) False (b) True
- 25.🧺 Do we need a clock or timer for the dissolving test? (a) not needed (b) needed
- 26.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
- 27.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a comb (d) cold water
- 28.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
- 29.True or false: a magnet is not needed for the dissolving test. (a) True (b) False
- 30.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
- 31.🥄 Does chalk powder dissolve in water? (a) does not dissolve (b) dissolves in water
- 32.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
- 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) warm water (c) a mirror (d) sugar
- 34.True or false: a comb is needed for the dissolving test. (a) False (b) True
- 35.🥄 Which of these dissolves slower? (a) powdered sugar (b) a big sugar cube (c) sugar stirred well (d) sugar in warm water
- 36.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
- 37.🥄 Which of these dissolves in water? (a) sand (b) chalk powder (c) glucose powder (d) small pebbles
- 38.🛟 Who should pour the warm water in the dissolving test? (a) nobody needs to (b) a grown-up (c) a friend who is running (d) the youngest child
- 39.True or false: cooking oil does not dissolve in water. (a) False (b) True
- 40.🥄 Does small pebbles dissolve in water? (a) dissolves in water (b) does not dissolve
Answer key
- False
- sawdust
- needed
- a clock or timer
- a solution
- a balloon
- faster
- True
- True
- False
- False
- not needed
- False
- True
- False
- False
- False
- the amount of sugar
- we measure it
- sugar in icy water
- True
- the water temperature
- False
- False
- needed
- False
- cold water
- does not dissolve
- True
- does not dissolve
- does not dissolve
- slower
- a mirror
- False
- a big sugar cube
- faster
- glucose powder
- a grown-up
- True
- does not dissolve
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