Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 100 · 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.⚖️ 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) the order of the layers (c) the order of pouring (d) the same glass
2. 2.True or false: honey is less dense than water. (a) False (b) True
3. 3.True or false: cooking oil is not needed for the density tower. (a) True (b) False
4. 4.True or false: a spoon is not needed for the density tower. (a) True (b) False
5. 5.🧺 Which of these is needed for the density tower? (a) a magnet (b) a mirror (c) honey (d) a balloon
6. 6.True or false: a coin is denser than water. (a) False (b) True
7. 7.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the stickiest (c) it is the coldest (d) it is the densest
8. 8.📘 What does “dense” mean? (a) heavy for its size (b) very colourful (c) very thin (d) very hot
9. 9.🔍 Which is the odd one out? (a) air (b) a pebble (c) a glass marble (d) very salty water
10. 10.🧺 Do we need yeast for the density tower? (a) needed (b) not needed
11. 11.🛟 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
12. 12.True or false: a balloon is needed for the density tower. (a) True (b) False
13. 13.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the water layer (b) under the honey (c) on top of the oil (d) in the honey layer
14. 14.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) in the water layer (b) at the very bottom (c) in the oil layer (d) on top of the oil
15. 15.True or false: a mirror is needed for the density tower. (a) True (b) False
16. 16.🧺 Do we need a spoon for the density tower? (a) needed (b) not needed
17. 17.🍯 Is an ice cube denser or less dense than water? (a) denser than water (b) less dense than water
18. 18.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) the glass gets hot (c) three separate layers (d) bubbles of gas
19. 19.True or false: a balloon is not needed for the density tower. (a) False (b) True
20. 20.🔍 Which layer is on top in the honey-water-oil tower? (a) cooking oil (b) honey (c) coloured water (d) the spoon
21. 21.🛟 Which rule keeps the density tower experiment safe? (a) throw the glass (b) pour it on the floor (c) do not lick the spoon (d) taste each layer
22. 22.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a tall clear glass (b) a spoon (c) honey (d) yeast
23. 23.🍯 Which of these is denser than water? (a) honey (b) cooking oil (c) an ice cube (d) a cork
24. 24.True or false: a glass marble is less dense than water. (a) True (b) False
25. 25.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) honey (c) a spoon (d) turmeric powder
26. 26.⚖️ 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
27. 27.🧺 Which of these is not needed for the density tower? (a) a spoon (b) water with food colour (c) a battery cell (d) a tall clear glass
28. 28.⚖️ 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 order of pouring (b) the order of the layers (c) the same glass (d) how much of each liquid
29. 29.True or false: a battery cell is needed for the density tower. (a) True (b) False
30. 30.True or false: honey is needed for the density tower. (a) False (b) True
31. 31.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they turn to honey (b) they mix for ever (c) they separate again (d) they become solid
32. 32.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) honey (d) an ice cube
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) air (d) honey
35. 35.🍯 Which of these is less dense than water? (a) a glass marble (b) very salty water (c) a cork (d) a pebble
36. 36.⚖️ 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) False (b) True
37. 37.🔍 Which is the odd one out? (a) air (b) an ice cube (c) a ping-pong ball (d) very salty water
38. 38.⚖️ 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
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 pouring (c) the order of the layers
40. 40.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) air (d) cooking oil

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