Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 73 · 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 coin (b) a pebble (c) air (d) honey
2. 2.True or false: cooking oil is not needed for the density tower. (a) False (b) True
3. 3.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) the glass gets hot (d) three separate layers
4. 4.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a spoon (c) turmeric powder (d) water with food colour
5. 5.🍯 Which of these is denser than water? (a) cooking oil (b) a coin (c) an ice cube (d) air
6. 6.🧺 Do we need a battery cell for the density tower? (a) needed (b) not needed
7. 7.🫗 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
8. 8.🔍 Which is the odd one out? (a) a pebble (b) honey (c) a ping-pong ball (d) a glass marble
9. 9.🍯 Which of these is less dense than water? (a) a coin (b) cooking oil (c) a pebble (d) honey
10. 10.🧺 Do we need honey for the density tower? (a) needed (b) not needed
11. 11.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
12. 12.⚖️ 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 the one thing we change. (a) False (b) True
13. 13.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) throw the glass (c) do not lick the spoon (d) taste each layer
14. 14.True or false: turmeric powder is needed for the density tower. (a) True (b) False
15. 15.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a magnet (b) water with food colour (c) a tall clear glass (d) honey
16. 16.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) under the honey (b) in the honey layer (c) on top of the oil (d) in the water layer
17. 17.True or false: a tall clear glass is not needed for the density tower. (a) False (b) True
18. 18.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
19. 19.⚖️ 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 order of the layers (c) the same glass (d) the order of pouring
20. 20.🍯 Is cooking oil denser or less dense than water? (a) less dense than water (b) denser than water
21. 21.⚖️ 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 change it (b) we keep it the same (c) we measure it
22. 22.True or false: very salty water is less dense than water. (a) True (b) False
23. 23.⚖️ 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 the one thing we change. (a) True (b) False
24. 24.True or false: air is denser than water. (a) True (b) False
25. 25.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they mix for ever (b) they separate again (c) they become solid (d) they turn to honey
26. 26.🧺 Do we need a magnet for the density tower? (a) needed (b) not needed
27. 27.📘 What does “dense” mean? (a) heavy for its size (b) very thin (c) very hot (d) very colourful
28. 28.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil makes it rain (c) oil attracts magnets (d) oil turns into honey
29. 29.🍯 Which of these is denser than water? (a) an ice cube (b) cooking oil (c) a glass marble (d) a ping-pong ball
30. 30.True or false: a balloon is needed for the density tower. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a cork (b) honey (c) a coin (d) a pebble
32. 32.🧺 Which of these is not needed for the density tower? (a) honey (b) a mirror (c) cooking oil (d) a tall clear glass
33. 33.⚖️ 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 the layers (b) the same three liquids (c) the same glass (d) the order of pouring
34. 34.True or false: a coin is denser than water. (a) False (b) True
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.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
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 the layers is what we measure. (a) True (b) False
38. 38.⚖️ 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
39. 39.🍯 Which of these is denser than water? (a) a ping-pong ball (b) a cork (c) cooking oil (d) honey
40. 40.True or false: cooking oil is denser than water. (a) True (b) False

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