Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 868 · 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 of these is denser than water? (a) cooking oil (b) air (c) a ping-pong ball (d) very salty water
2. 2.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil turns into honey (d) oil makes it rain
3. 3.⚖️ 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 what we measure. (a) True (b) False
4. 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 same three liquids”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🧺 Which of these is not needed for the density tower? (a) honey (b) water with food colour (c) a mirror (d) cooking oil
6. 6.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
7. 7.🧺 Which of these is needed for the density tower? (a) a balloon (b) yeast (c) water with food colour (d) a battery cell
8. 8.🧺 Which of these is needed for the density tower? (a) honey (b) a magnet (c) yeast (d) a balloon
9. 9.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
10. 10.True or false: a coin is less dense than water. (a) True (b) False
11. 11.🧺 Which of these is needed for the density tower? (a) a mirror (b) yeast (c) cooking oil (d) a magnet
12. 12.⚖️ 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 same glass (b) the order of the layers (c) the order of pouring
13. 13.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) a cork (d) a pebble
14. 14.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
15. 15.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) taste each layer (c) throw the glass (d) do not lick the spoon
16. 16.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
17. 17.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense 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) the same glass (c) how much of each liquid (d) the order of the layers
19. 19.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
20. 20.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
21. 21.True or false: very salty water is less dense than water. (a) True (b) False
22. 22.⚖️ 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
23. 23.True or false: honey is not needed for the density tower. (a) False (b) True
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 the one thing we change. (a) True (b) False
25. 25.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they separate again (c) they turn to honey (d) they mix for ever
26. 26.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) the glass gets hot (c) one mixed colour (d) three separate layers
27. 27.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
28. 28.🍯 Which of these is less dense than water? (a) a cork (b) a glass marble (c) very salty water (d) a pebble
29. 29.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the oil layer (b) at the very bottom (c) on top of the oil (d) in the water layer
30. 30.🔮 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) on top of the oil (d) under the honey
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) turmeric powder (c) a spoon (d) water with food colour
32. 32.📘 What does “dense” mean? (a) very colourful (b) very hot (c) very thin (d) heavy for its size
33. 33.True or false: a pebble is denser than water. (a) True (b) False
34. 34.🫗 Why does cooking oil float on top of water? (a) oil is sticky (b) oil is hot (c) oil is less dense (d) oil is heavier
35. 35.🍯 Which of these is less dense than water? (a) a pebble (b) cooking oil (c) very salty water (d) a coin
36. 36.True or false: turmeric powder is not needed for the density tower. (a) False (b) True
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) yeast (d) a tall clear glass
39. 39.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) cooking oil (c) honey (d) a magnet
40. 40.⚖️ 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 keep it the same (c) we measure it

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