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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a magnet (c) water with food colour (d) honey
- 2.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a mirror (c) water with food colour (d) yeast
- 3.🔍 Which is the odd one out? (a) very salty water (b) air (c) a cork (d) an ice cube
- 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) water with food colour (c) a battery cell (d) honey
- 5.True or false: a ping-pong ball is denser than water. (a) True (b) False
- 6.🍯 Which of these is denser than water? (a) honey (b) air (c) a cork (d) an ice cube
- 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) turmeric powder (c) cooking oil (d) water with food colour
- 8.📘 What does “dense” mean? (a) very thin (b) heavy for its size (c) very colourful (d) very hot
- 9.True or false: a balloon is not needed for the density tower. (a) True (b) False
- 10.⚖️ 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
- 11.True or false: a mirror is not needed for the density tower. (a) False (b) True
- 12.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) a glass marble (d) an ice cube
- 13.🍯 Which of these is less dense than water? (a) honey (b) a cork (c) very salty water (d) a coin
- 14.🧺 Which of these is not needed for the density tower? (a) a balloon (b) a tall clear glass (c) cooking oil (d) water with food colour
- 15.True or false: a cork is denser than water. (a) True (b) False
- 16.🍯 Which of these is denser than water? (a) cooking oil (b) a glass marble (c) a ping-pong ball (d) air
- 17.🛟 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
- 18.🔮 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) under the honey (d) on top of the oil
- 19.🔍 Which is the odd one out? (a) a cork (b) a coin (c) a ping-pong ball (d) an ice cube
- 20.🔮 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
- 21.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
- 22.⚖️ 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 glass”? (a) we change it (b) we measure it (c) we keep it the same
- 23.🧺 Which of these is needed for the density tower? (a) a balloon (b) honey (c) yeast (d) a magnet
- 24.🍯 Is honey denser or less dense than water? (a) less dense than water (b) denser than water
- 25.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) honey (c) a tall clear glass (d) yeast
- 26.⚖️ 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 the one thing we change. (a) False (b) True
- 27.🍯 Which of these is denser than water? (a) a ping-pong ball (b) an ice cube (c) a cork (d) a pebble
- 28.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
- 29.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) one mixed colour (c) bubbles of gas (d) three separate layers
- 30.🍯 Which of these is less dense than water? (a) a coin (b) very salty water (c) cooking oil (d) a glass marble
- 31.True or false: honey is not needed for the density tower. (a) False (b) True
- 32.🍯 Which of these is less dense than water? (a) a glass marble (b) a ping-pong ball (c) very salty water (d) honey
- 33.🔍 Which is the odd one out? (a) cooking oil (b) a ping-pong ball (c) a pebble (d) a cork
- 34.🧺 Which of these is needed for the density tower? (a) a tall clear glass (b) a balloon (c) yeast (d) a mirror
- 35.🧺 Do we need turmeric powder for the density tower? (a) needed (b) not needed
- 36.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
- 37.⚖️ 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 glass (d) the same three liquids
- 38.⚖️ 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 keep it the same (c) we change it
- 39.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) honey (d) very salty water
- 40.🍯 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
Answer key
- a magnet
- water with food colour
- very salty water
- a battery cell
- False
- honey
- turmeric powder
- heavy for its size
- True
- we change it
- True
- an ice cube
- a cork
- a balloon
- False
- a glass marble
- do not lick the spoon
- on top of the oil
- a coin
- they separate again
- denser than water
- we keep it the same
- honey
- denser than water
- yeast
- False
- a pebble
- not needed
- three separate layers
- cooking oil
- False
- a ping-pong ball
- a pebble
- a tall clear glass
- not needed
- denser than water
- the order of pouring
- we keep it the same
- a ping-pong ball
- it is the densest
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