Density Tower Experiment Worksheet
What you do (Heaviest for its size sinks): 1. Pour honey slowly into the glass to fill about a quarter. 2. Pour coloured water gently down the side of the glass. 3. Pour the cooking oil gently on top and watch the layers settle. 4. Gently drop in a cork and a coin, see where each stops, and wipe up oil spills.
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- 1.🍯 Why does honey sink to the bottom of the glass? (a) it is the stickiest (b) it is yellow (c) it is the coldest (d) it is the densest
- 2.🧺 Do we need water with food colour for the density tower? (a) not needed (b) needed
- 3.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a magnet (c) a balloon (d) a battery cell
- 4.True or false: honey is needed for the density tower. (a) True (b) False
- 5.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
- 6.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil attracts magnets (d) oil turns into honey
- 7.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
- 8.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) throw the glass (d) taste each layer
- 9.🔍 Which is the odd one out? (a) honey (b) cooking oil (c) an ice cube (d) air
- 10.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the order of pouring is the one thing we change. (a) False (b) True
- 11.🧺 Which of these is needed for the density tower? (a) a magnet (b) honey (c) a mirror (d) a balloon
- 12.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) in the oil layer (d) at the very bottom
- 13.🍯 Which of these is denser than water? (a) air (b) a pebble (c) an ice cube (d) a cork
- 14.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is the one thing we change. (a) False (b) True
- 15.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) cooking oil (d) an ice cube
- 16.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) honey (c) yeast (d) a spoon
- 17.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is the one thing we change. (a) False (b) True
- 18.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: how much of each liquid is kept the same. (a) True (b) False
- 19.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “the order of pouring”? (a) we change it (b) we measure it (c) we keep it the same
- 20.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? What do we do with “how much of each liquid”? (a) we measure it (b) we change it (c) we keep it the same
- 21.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is what we measure. (a) False (b) True
- 22.🔍 Which is the odd one out? (a) air (b) a cork (c) a ping-pong ball (d) very salty water
- 23.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) how much of each liquid (b) the order of pouring (c) the same glass (d) the order of the layers
- 24.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same glass is kept the same. (a) True (b) False
- 25.True or false: turmeric powder is needed for the density tower. (a) True (b) False
- 26.True or false: very salty water is less dense than water. (a) True (b) False
- 27.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they mix for ever (d) they become solid
- 28.True or false: cooking oil is not needed for the density tower. (a) False (b) True
- 29.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
- 30.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is hot (c) oil is heavier (d) oil is sticky
- 31.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
- 32.True or false: turmeric powder is not needed for the density tower. (a) True (b) False
- 33.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? True or false: the same three liquids is kept the same. (a) False (b) True
- 34.True or false: cooking oil is needed for the density tower. (a) False (b) True
- 35.True or false: a pebble is less dense than water. (a) False (b) True
- 36.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) bubbles of gas (c) the glass gets hot (d) one mixed colour
- 37.True or false: a balloon is needed for the density tower. (a) False (b) True
- 38.🍯 Which of these is denser than water? (a) a coin (b) a cork (c) a ping-pong ball (d) cooking oil
- 39.🍯 Which of these is less dense than water? (a) honey (b) a glass marble (c) very salty water (d) air
- 40.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
Answer key
- it is the densest
- needed
- a tall clear glass
- True
- needed
- spilled oil is slippery
- True
- do not lick the spoon
- honey
- True
- honey
- at the very bottom
- a pebble
- False
- a pebble
- yeast
- False
- True
- we change it
- we keep it the same
- False
- very salty water
- the order of the layers
- True
- False
- False
- they separate again
- False
- not needed
- oil is less dense
- not needed
- True
- True
- True
- False
- three separate layers
- False
- a coin
- air
- denser than water
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