Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 622 · 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 not needed for the density tower? (a) water with food colour (b) a battery cell (c) a tall clear glass (d) cooking oil
2. 2.⚖️ 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) True (b) False
3. 3.True or false: cooking oil is denser than water. (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? True or false: the same three liquids is what we measure. (a) True (b) False
5. 5.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a tall clear glass (c) yeast (d) a spoon
6. 6.True or false: very salty water is denser than water. (a) False (b) True
7. 7.🍯 Which of these is denser than water? (a) an ice cube (b) a cork (c) air (d) very salty water
8. 8.True or false: honey is not needed for the density tower. (a) False (b) True
9. 9.True or false: a battery cell is not needed for the density tower. (a) True (b) False
10. 10.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
11. 11.🧺 Which of these is needed for the density tower? (a) a magnet (b) a balloon (c) a battery cell (d) honey
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 order of the layers”? (a) we keep it the same (b) we change it (c) we measure it
13. 13.🍯 Which of these is denser than water? (a) an ice cube (b) a glass marble (c) air (d) cooking oil
14. 14.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
15. 15.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a coin (d) cooking oil
16. 16.🧺 Do we need honey for the density tower? (a) not needed (b) needed
17. 17.True or false: honey is needed for the density tower. (a) False (b) True
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 same glass (b) the order of pouring (c) the same three liquids (d) how much of each liquid
19. 19.⚖️ 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 change it (b) we keep it the same (c) we measure it
20. 20.📘 What does “dense” mean? (a) very thin (b) very hot (c) very colourful (d) heavy for its size
21. 21.🔍 Which is the odd one out? (a) a ping-pong ball (b) a glass marble (c) a pebble (d) very salty water
22. 22.🧺 Do we need cooking oil for the density tower? (a) not needed (b) needed
23. 23.True or false: a glass marble is denser than water. (a) False (b) True
24. 24.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil makes it rain (d) oil turns into honey
25. 25.🔍 Which is the odd one out? (a) cooking oil (b) air (c) an ice cube (d) very salty water
26. 26.🍯 Which of these is less dense than water? (a) a pebble (b) a ping-pong ball (c) a coin (d) very salty water
27. 27.True or false: a pebble is less dense than water. (a) False (b) True
28. 28.🍯 Is a glass marble denser or less dense than water? (a) denser than water (b) less dense than water
29. 29.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they separate again (b) they turn to honey (c) they mix for ever (d) they become solid
30. 30.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) three separate layers (c) the glass gets hot (d) one mixed colour
31. 31.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
32. 32.🧺 Which of these is not needed for the density tower? (a) a spoon (b) cooking oil (c) water with food colour (d) a mirror
33. 33.True or false: a ping-pong ball is less dense than water. (a) True (b) False
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 order of the layers is kept the same. (a) True (b) False
35. 35.🍯 Is honey denser or less dense than water? (a) denser than water (b) less dense than water
36. 36.🍯 Which of these is denser than water? (a) cooking oil (b) air (c) a pebble (d) a ping-pong ball
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a mirror (c) honey (d) a tall clear glass
39. 39.🍯 Which of these is less dense than water? (a) honey (b) a coin (c) a cork (d) very salty water
40. 40.🫗 Why does cooking oil float on top of water? (a) oil is heavier (b) oil is hot (c) oil is sticky (d) oil is less dense

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