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