Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 751 · 40 questions

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.

1. 1.🔍 Which is the odd one out? (a) a pebble (b) cooking oil (c) an ice cube (d) a ping-pong ball
2. 2.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
3. 3.🍯 Which of these is less dense than water? (a) a coin (b) a ping-pong ball (c) a pebble (d) honey
4. 4.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil attracts magnets (c) oil makes it rain (d) oil turns into honey
5. 5.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) on top of the oil (c) in the honey layer (d) under the honey
6. 6.⚖️ 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 three liquids (b) how much of each liquid (c) the same glass (d) the order of the layers
7. 7.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a spoon (c) a magnet (d) honey
8. 8.⚖️ 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) the same glass
9. 9.True or false: a tall clear glass is not needed for the density tower. (a) True (b) False
10. 10.True or false: water with food colour is not needed for the density tower. (a) True (b) False
11. 11.⚖️ 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 the layers (b) the order of pouring (c) the same three liquids
12. 12.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
13. 13.⚖️ 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 same glass (b) how much of each liquid (c) the order of pouring (d) the same three liquids
14. 14.True or false: a battery cell is not needed for the density tower. (a) False (b) True
15. 15.🧺 Do we need honey for the density tower? (a) not needed (b) needed
16. 16.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very colourful (d) very hot
17. 17.True or false: a ping-pong ball is less dense than water. (a) True (b) False
18. 18.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is less dense (c) oil is sticky (d) oil is hot
19. 19.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) yeast (b) honey (c) water with food colour (d) a tall clear glass
20. 20.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
21. 21.⚖️ 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 keep it the same (b) we measure it (c) we change it
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) cooking oil (c) honey (d) a magnet
23. 23.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) a glass marble (d) a cork
24. 24.⚖️ 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
25. 25.🍯 Which of these is denser than water? (a) an ice cube (b) a coin (c) cooking oil (d) air
26. 26.🧺 Which of these is needed for the density tower? (a) a mirror (b) yeast (c) honey (d) turmeric powder
27. 27.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
28. 28.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) coloured water (c) honey (d) the spoon
29. 29.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
30. 30.⚖️ 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 keep it the same (c) we change it
31. 31.🧺 Do we need a battery cell for the density tower? (a) not needed (b) needed
32. 32.True or false: cooking oil is less dense than water. (a) False (b) True
33. 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) a spoon (c) cooking oil (d) honey
34. 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 what we measure. (a) True (b) False
35. 35.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) on top of the oil (c) in the water layer (d) at the very bottom
36. 36.🍯 Which of these is less dense than water? (a) very salty water (b) cooking oil (c) a pebble (d) honey
37. 37.🧺 Do we need a balloon for the density tower? (a) not needed (b) needed
38. 38.🛟 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
39. 39.⚖️ 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
40. 40.🧺 Do we need yeast for the density tower? (a) not needed (b) needed

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