Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 847 · 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 less dense than water? (a) a glass marble (b) a pebble (c) honey (d) cooking oil
2. 2.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) at the very bottom (b) in the oil layer (c) in the water layer (d) on top of the oil
3. 3.🍯 Which of these is denser than water? (a) an ice cube (b) a ping-pong ball (c) a coin (d) air
4. 4.🔮 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 mix for ever (d) they separate again
5. 5.⚖️ 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 three liquids
6. 6.🧺 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
7. 7.🔍 Which is the odd one out? (a) cooking oil (b) an ice cube (c) air (d) a glass marble
8. 8.🧺 Which of these is needed for the density tower? (a) a balloon (b) yeast (c) water with food colour (d) a battery cell
9. 9.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) oil attracts magnets (c) spilled oil is slippery (d) oil makes it rain
10. 10.True or false: a battery cell is needed for the density tower. (a) True (b) False
11. 11.True or false: a pebble is less dense than water. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) honey (b) a pebble (c) a glass marble (d) cooking oil
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.🍯 Why does honey sink to the bottom of the glass? (a) it is the densest (b) it is yellow (c) it is the stickiest (d) it is the coldest
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 same glass”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.📘 What does “dense” mean? (a) heavy for its size (b) very colourful (c) very thin (d) very hot
17. 17.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) a mirror (d) a spoon
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.🛟 Which rule keeps the density tower experiment safe? (a) do not lick the spoon (b) throw the glass (c) pour it on the floor (d) taste each layer
20. 20.⚖️ 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) how much of each liquid (b) the same three liquids (c) the same glass (d) the order of the layers
21. 21.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) honey (d) a glass marble
22. 22.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is heavier (c) oil is sticky (d) oil is hot
23. 23.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
24. 24.🔍 Which is the odd one out? (a) honey (b) a glass marble (c) very salty water (d) an ice cube
25. 25.🧺 Which of these is needed for the density tower? (a) a battery cell (b) a mirror (c) turmeric powder (d) a tall clear glass
26. 26.🧺 Which of these is needed for the density tower? (a) a battery cell (b) turmeric powder (c) honey (d) a mirror
27. 27.True or false: an ice cube is less dense than water. (a) True (b) False
28. 28.⚖️ 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) False (b) True
29. 29.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) the glass gets hot (c) three separate layers (d) one mixed colour
30. 30.True or false: a battery cell is not needed for the density tower. (a) True (b) False
31. 31.True or false: cooking oil is less dense than water. (a) False (b) True
32. 32.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
33. 33.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a battery cell (c) honey (d) a spoon
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 pouring is what we measure. (a) True (b) False
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 order of pouring is the one thing we change. (a) False (b) True
36. 36.True or false: a cork is denser than water. (a) True (b) False
37. 37.True or false: cooking oil is needed for the density tower. (a) False (b) True
38. 38.🧺 Which of these is not needed for the density tower? (a) cooking oil (b) honey (c) a tall clear glass (d) turmeric powder
39. 39.⚖️ 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) how much of each liquid (b) the order of the layers (c) the order of pouring
40. 40.True or false: a coin is denser than water. (a) False (b) True

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