Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 60 · 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.🍯 Is a glass marble denser or less dense than water? (a) less dense than water (b) denser than water
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.True or false: a spoon is not needed for the density tower. (a) False (b) True
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 kept the same. (a) True (b) False
5. 5.📘 What does “dense” mean? (a) very thin (b) very colourful (c) very hot (d) heavy for its size
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) yeast (c) a tall clear glass (d) honey
7. 7.True or false: an ice cube is denser than water. (a) False (b) True
8. 8.🔍 What do you see after pouring honey, water and oil into one glass? (a) bubbles of gas (b) one mixed colour (c) three separate layers (d) the glass gets hot
9. 9.🧺 Which of these is needed for the density tower? (a) a battery cell (b) honey (c) a balloon (d) a magnet
10. 10.🛟 Why should we wipe up spilled oil at once? (a) spilled oil is slippery (b) oil attracts magnets (c) oil turns into honey (d) oil makes it rain
11. 11.True or false: cooking oil is less dense than water. (a) False (b) True
12. 12.🍯 Is very salty water denser or less dense than water? (a) denser than water (b) less dense than water
13. 13.🍯 Which of these is less dense than water? (a) honey (b) very salty water (c) an ice cube (d) a coin
14. 14.⚖️ 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 the layers (c) the same three liquids (d) how much of each liquid
15. 15.⚖️ 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) False (b) True
16. 16.🧺 Which of these is not needed for the density tower? (a) honey (b) cooking oil (c) a tall clear glass (d) a mirror
17. 17.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a battery cell (c) a spoon (d) cooking oil
18. 18.⚖️ 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) True (b) False
19. 19.🍯 Is air denser or less dense than water? (a) less dense than water (b) denser than water
20. 20.🍯 Which of these is denser than water? (a) an ice cube (b) cooking oil (c) a coin (d) air
21. 21.🛟 Which rule keeps the density tower experiment safe? (a) pour it on the floor (b) do not lick the spoon (c) taste each layer (d) throw the glass
22. 22.True or false: a battery cell is needed for the density tower. (a) True (b) False
23. 23.True or false: a balloon is needed for the density tower. (a) False (b) True
24. 24.🧺 Which of these is needed for the density tower? (a) a mirror (b) a tall clear glass (c) a magnet (d) a battery cell
25. 25.True or false: very salty water is less dense than water. (a) True (b) False
26. 26.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they separate again (c) they mix for ever (d) they become solid
27. 27.🍯 Which of these is less dense than water? (a) very salty water (b) a coin (c) air (d) a glass marble
28. 28.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a pebble (d) a glass marble
29. 29.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) at the very bottom (c) in the water layer (d) in the oil layer
30. 30.⚖️ 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
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a mirror (b) water with food colour (c) a tall clear glass (d) a spoon
32. 32.🍯 Which of these is denser than water? (a) air (b) an ice cube (c) cooking oil (d) very salty water
33. 33.⚖️ 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
34. 34.🍯 Which of these is less dense than water? (a) a pebble (b) a coin (c) a cork (d) a glass marble
35. 35.True or false: a ping-pong ball is less dense than water. (a) False (b) True
36. 36.🍯 Which of these is less dense than water? (a) honey (b) a glass marble (c) a ping-pong ball (d) a coin
37. 37.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) turmeric powder (b) a tall clear glass (c) honey (d) cooking oil
38. 38.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) cooking oil (c) water with food colour (d) a spoon
39. 39.🔍 Which is the odd one out? (a) honey (b) a coin (c) a pebble (d) a ping-pong ball
40. 40.True or false: a tall clear glass is needed for the density tower. (a) False (b) True

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