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.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
- 2.True or false: cotton wool is not needed for the dissolving test. (a) False (b) True
- 3.🧺 Do we need sugar for the dissolving test? (a) not needed (b) needed
- 4.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a comb (d) sugar
- 5.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar stirred well (c) sugar in icy water (d) sugar in warm water
- 6.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) two clear glasses (c) sugar (d) a balloon
- 7.⚖️ 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) False (b) True
- 8.🥄 Which of these dissolves in water? (a) small pebbles (b) baking soda (c) chalk powder (d) sand
- 9.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster
- 10.🧺 Which of these is needed for the dissolving test? (a) honey (b) a balloon (c) cold water (d) a mirror
- 11.True or false: cold water is needed for the dissolving test. (a) False (b) True
- 12.⚖️ 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) time to dissolve (c) the amount of sugar
- 13.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
- 14.🔍 Which is the odd one out? (a) baking soda (b) sugar (c) glucose powder (d) sawdust
- 15.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a mirror (d) warm water
- 16.⚖️ 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 water temperature (c) the kind of sugar
- 17.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the amount of water (b) time to dissolve (c) the kind of sugar (d) the stirring
- 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) cold water (c) honey (d) sugar
- 19.⚖️ 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
- 20.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) neither of them (b) powdered sugar (c) the sugar cube (d) both the same
- 21.🥄 Which of these dissolves in water? (a) table salt (b) sawdust (c) sand (d) cooking oil
- 22.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the kind of sugar is the one thing we change. (a) False (b) True
- 23.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) a comb (c) two clear glasses (d) cold water
- 24.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) sand (d) table salt
- 25.True or false: sugar stirred well dissolves faster. (a) False (b) True
- 26.🛟 How should you check if the sugar has dissolved? (a) poke it with a finger (b) smell it closely (c) taste it (d) look for leftover grains
- 27.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) honey (c) a clock or timer (d) a magnet
- 28.🥄 Which of these dissolves slower? (a) sugar in warm water (b) sugar stirred well (c) powdered sugar (d) a big sugar cube
- 29.🔍 Which is the odd one out? (a) glucose powder (b) cooking oil (c) sand (d) chalk powder
- 30.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
- 31.🥄 Which of these does not dissolve in water? (a) sawdust (b) food colour (c) baking soda (d) table salt
- 32.True or false: sand dissolves in water. (a) False (b) True
- 33.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
- 34.True or false: sugar in warm water dissolves faster. (a) False (b) True
- 35.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
- 36.📘 What do we call water with sugar dissolved in it? (a) a solution (b) a magnet (c) a rainbow (d) a crystal
- 37.🔍 Which is the odd one out? (a) cooking oil (b) sugar (c) table salt (d) baking soda
- 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
- 39.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) warm water (b) a magnet (c) two clear glasses (d) sugar
- 40.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: time to dissolve is the one thing we change. (a) False (b) True
Answer key
- faster
- True
- needed
- sugar
- sugar in icy water
- a balloon
- True
- baking soda
- faster
- cold water
- True
- the amount of sugar
- does not dissolve
- sawdust
- a mirror
- the kind of sugar
- time to dissolve
- honey
- True
- powdered sugar
- table salt
- False
- a comb
- sand
- True
- look for leftover grains
- a clock or timer
- a big sugar cube
- glucose powder
- dissolves in water
- sawdust
- False
- we change it
- True
- powdered sugar
- a solution
- cooking oil
- we measure it
- a magnet
- False
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