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: glucose powder does not dissolve in water. (a) False (b) True
- 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of sugar is kept the same. (a) False (b) True
- 3.True or false: table salt dissolves in water. (a) True (b) False
- 4.⚖️ 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 water temperature (d) the amount of sugar
- 5.⚖️ 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) True (b) False
- 6.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we keep it the same (b) we measure it (c) we change it
- 7.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
- 8.🧺 Do we need two clear glasses for the dissolving test? (a) not needed (b) needed
- 9.🔍 Which is the odd one out? (a) sand (b) sugar (c) small pebbles (d) chalk powder
- 10.🧺 Which of these is needed for the dissolving test? (a) honey (b) a comb (c) cold water (d) a mirror
- 11.True or false: sugar is not 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) the kind of sugar (c) time to dissolve
- 13.🛟 Who should pour the warm water in the dissolving test? (a) the youngest child (b) nobody needs to (c) a grown-up (d) a friend who is running
- 14.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
- 15.🔍 Sand is stirred into water. What do you see after a while? (a) it floats up (b) it turns blue (c) it dissolves (d) it settles at the bottom
- 16.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) sugar (c) cold water (d) cotton wool
- 17.⚖️ 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
- 18.📘 What do we call water with sugar dissolved in it? (a) a magnet (b) a rainbow (c) a solution (d) a crystal
- 19.🥄 Does glucose powder dissolve in water? (a) does not dissolve (b) dissolves in water
- 20.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) sugar (b) cold water (c) two clear glasses (d) honey
- 21.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
- 22.🥄 Which of these dissolves faster? (a) a big sugar cube (b) sugar in icy water (c) powdered sugar (d) sugar left unstirred
- 23.🥄 Which of these dissolves in water? (a) sawdust (b) small pebbles (c) sugar (d) chalk powder
- 24.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar in warm water (c) a big sugar cube (d) sugar left unstirred
- 25.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the kind of sugar”? (a) we keep it the same (b) we measure it (c) we change it
- 26.🧺 Which of these is needed for the dissolving test? (a) two clear glasses (b) cotton wool (c) a magnet (d) a comb
- 27.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
- 28.🧺 Do we need sugar for the dissolving test? (a) needed (b) not needed
- 29.⚖️ 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
- 30.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) sugar likes the dark (c) particles move faster (d) cold water is wet
- 31.True or false: cold water is needed for the dissolving test. (a) False (b) True
- 32.🥄 Does sugar stirred well dissolve faster or slower? (a) slower (b) faster
- 33.🧺 Which of these is not needed for the dissolving test? (a) a balloon (b) two clear glasses (c) sugar (d) cold water
- 34.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is what we measure. (a) False (b) True
- 35.⚖️ 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
- 36.🔍 Which is the odd one out? (a) small pebbles (b) sand (c) sawdust (d) food colour
- 37.⚖️ 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 amount of water
- 38.🧺 Do we need a mirror for the dissolving test? (a) needed (b) not needed
- 39.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar left unstirred (d) sugar stirred well
- 40.🥄 Which of these dissolves slower? (a) a big sugar cube (b) sugar stirred well (c) powdered sugar (d) sugar in warm water
Answer key
- False
- True
- True
- time to dissolve
- True
- we keep it the same
- does not dissolve
- needed
- sugar
- cold water
- False
- the kind of sugar
- a grown-up
- False
- it settles at the bottom
- cotton wool
- we change it
- a solution
- dissolves in water
- honey
- needed
- powdered sugar
- sugar
- sugar in warm water
- we keep it the same
- two clear glasses
- faster
- needed
- True
- particles move faster
- True
- faster
- a balloon
- False
- we measure it
- food colour
- the amount of water
- not needed
- sugar left unstirred
- a big sugar cube
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