Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 176 · 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.🧺 Do we need a balloon for the density tower? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) a spoon (c) water with food colour (d) cooking oil
3. 3.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) honey (c) a spoon (d) turmeric powder
4. 4.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
5. 5.⚖️ 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 change it (b) we measure it (c) we keep it the same
6. 6.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they become solid (c) they separate again (d) they mix for ever
7. 7.🔍 Which is the odd one out? (a) air (b) very salty water (c) cooking oil (d) an ice cube
8. 8.True or false: cooking oil is denser than water. (a) True (b) False
9. 9.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) oil makes it rain (c) oil turns into honey (d) spilled oil is slippery
10. 10.⚖️ 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 three liquids (b) how much of each liquid (c) the same glass (d) the order of pouring
11. 11.🧺 Do we need water with food colour for the density tower? (a) needed (b) not needed
12. 12.⚖️ 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 measure it (c) we change it
13. 13.🧺 Which of these is needed for the density tower? (a) a magnet (b) water with food colour (c) turmeric powder (d) a balloon
14. 14.True or false: a glass marble is less dense than water. (a) False (b) True
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 the layers”? (a) we measure it (b) we change it (c) we keep it the same
16. 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 what we measure? (a) the same glass (b) the order of pouring (c) the order of the layers (d) how much of each liquid
17. 17.🧺 Do we need a tall clear glass for the density tower? (a) not needed (b) needed
18. 18.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
19. 19.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
20. 20.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very colourful (d) very hot
21. 21.🧺 Which of these is needed for the density tower? (a) a magnet (b) a spoon (c) a battery cell (d) yeast
22. 22.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) in the honey layer (d) on top of the oil
23. 23.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) on top of the oil (c) in the oil layer (d) in the water layer
24. 24.True or false: honey is not needed for the density tower. (a) True (b) False
25. 25.🍯 Which of these is denser than water? (a) a cork (b) cooking oil (c) an ice cube (d) honey
26. 26.🧺 Which of these is needed for the density tower? (a) a balloon (b) a mirror (c) a tall clear glass (d) a magnet
27. 27.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a mirror (c) cooking oil (d) honey
28. 28.🍯 Which of these is denser than water? (a) a ping-pong ball (b) air (c) very salty water (d) cooking oil
29. 29.🔍 What do you see after pouring honey, water and oil into one glass? (a) three separate layers (b) one mixed colour (c) bubbles of gas (d) the glass gets hot
30. 30.⚖️ 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) True (b) False
31. 31.⚖️ 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) False (b) True
32. 32.True or false: a coin is less dense than water. (a) True (b) False
33. 33.True or false: very salty water is less dense than water. (a) False (b) True
34. 34.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a tall clear glass (d) yeast
35. 35.🍯 Which of these is less dense than water? (a) a pebble (b) honey (c) a glass marble (d) a ping-pong ball
36. 36.True or false: a magnet is needed for the density tower. (a) False (b) True
37. 37.True or false: a spoon is not needed for the density tower. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) air (b) honey (c) a ping-pong ball (d) an ice cube
39. 39.🫗 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
40. 40.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed

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