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