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