Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 515 · 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.📘 What does “dense” mean? (a) heavy for its size (b) very colourful (c) very thin (d) very hot
2. 2.True or false: a tall clear glass is needed for the density tower. (a) True (b) False
3. 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) cooking oil (c) honey (d) water with food colour
4. 4.True or false: yeast is needed for the density tower. (a) True (b) False
5. 5.⚖️ 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) False (b) True
6. 6.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the oil layer (c) at the very bottom (d) in the water layer
7. 7.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) a tall clear glass (c) water with food colour (d) a battery cell
8. 8.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) honey (d) a glass marble
9. 9.🧺 Which of these is needed for the density tower? (a) cooking oil (b) a mirror (c) a balloon (d) a magnet
10. 10.True or false: very salty water is denser than water. (a) True (b) False
11. 11.🧺 Which of these is needed for the density tower? (a) water with food colour (b) a balloon (c) a magnet (d) turmeric powder
12. 12.True or false: very salty water is less dense than water. (a) False (b) True
13. 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 kept the same. (a) True (b) False
14. 14.True or false: honey is less dense than water. (a) True (b) False
15. 15.⚖️ 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
16. 16.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) pour it on the floor (c) throw the glass (d) taste each layer
17. 17.🍯 Is a pebble denser or less dense than water? (a) less dense than water (b) denser than water
18. 18.⚖️ 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 pouring (b) how much of each liquid (c) the same three liquids (d) the order of the layers
19. 19.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
20. 20.True or false: a pebble is less dense than water. (a) True (b) False
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a tall clear glass (c) a spoon (d) honey
22. 22.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
23. 23.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
24. 24.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) very salty water (d) a cork
25. 25.True or false: a magnet is needed for the density tower. (a) False (b) True
26. 26.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) a balloon (d) cooking oil
27. 27.🔍 Which layer is on top in the honey-water-oil tower? (a) the spoon (b) coloured water (c) cooking oil (d) honey
28. 28.True or false: a balloon is not needed for the density tower. (a) False (b) True
29. 29.🫗 Why does cooking oil float on top of water? (a) oil is hot (b) oil is sticky (c) oil is heavier (d) oil is less dense
30. 30.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a cork (d) cooking oil
31. 31.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.🔍 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
34. 34.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a magnet (c) a spoon (d) a battery cell
35. 35.⚖️ 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 what we measure. (a) False (b) True
36. 36.⚖️ 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) the order of pouring (c) the order of the layers (d) how much of each liquid
37. 37.True or false: a coin is less dense than water. (a) False (b) True
38. 38.🍯 Is a ping-pong ball denser or less dense than water? (a) denser than water (b) less dense than water
39. 39.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
40. 40.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a mirror (c) honey (d) a spoon

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