Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 197 · 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.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) cooking oil (c) a tall clear glass (d) a mirror
2. 2.🔍 Which is the odd one out? (a) a coin (b) very salty water (c) an ice cube (d) a glass marble
3. 3.⚖️ 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) how much of each liquid (b) the order of pouring (c) the same three liquids (d) the order of the layers
4. 4.🔍 What do you see after pouring honey, water and oil into one glass? (a) one mixed colour (b) three separate layers (c) the glass gets hot (d) bubbles of gas
5. 5.🍯 Is a pebble denser or less dense than water? (a) denser than water (b) less dense than water
6. 6.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a balloon (b) water with food colour (c) a tall clear glass (d) honey
7. 7.🔍 Which is the odd one out? (a) air (b) an ice cube (c) honey (d) a ping-pong ball
8. 8.🍯 Which of these is denser than water? (a) air (b) a cork (c) cooking oil (d) very salty water
9. 9.🧺 Which of these is not needed for the density tower? (a) a balloon (b) water with food colour (c) a tall clear glass (d) cooking oil
10. 10.True or false: an ice cube is less dense than water. (a) True (b) False
11. 11.🍯 Is air 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? What do we do with “the order of the layers”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🧺 Do we need a tall clear glass for the density tower? (a) needed (b) not needed
14. 14.🔮 Predict: you gently drop a coin into the tower. Where does it end up? (a) on top of the oil (b) in the water layer (c) in the oil layer (d) at the very bottom
15. 15.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) cooking oil (c) a magnet (d) water with food colour
16. 16.True or false: turmeric powder is needed for the density tower. (a) False (b) True
17. 17.🛟 Why should we wipe up spilled oil at once? (a) oil turns into honey (b) spilled oil is slippery (c) oil makes it rain (d) oil attracts magnets
18. 18.True or false: cooking oil is not needed for the density tower. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) a coin (b) air (c) cooking oil (d) an ice cube
20. 20.🍯 Why does honey sink to the bottom of the glass? (a) it is yellow (b) it is the densest (c) it is the coldest (d) it is the stickiest
21. 21.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) water with food colour (b) a spoon (c) yeast (d) a tall clear glass
22. 22.🧺 Do we need yeast for the density tower? (a) not needed (b) needed
23. 23.True or false: a magnet is not needed for the density tower. (a) True (b) False
24. 24.⚖️ 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) False (b) True
25. 25.🍯 Which of these is less dense than water? (a) honey (b) a pebble (c) a glass marble (d) an ice cube
26. 26.True or false: a ping-pong ball is denser than water. (a) True (b) False
27. 27.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) honey (b) a tall clear glass (c) water with food colour (d) turmeric powder
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 same glass (b) the order of pouring (c) the same three liquids (d) the order of the layers
29. 29.🔍 Which is the odd one out? (a) an ice cube (b) very salty water (c) cooking oil (d) air
30. 30.🍯 Is a cork denser or less dense than water? (a) denser than water (b) less dense than water
31. 31.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) cooking oil (b) a magnet (c) honey (d) a tall clear glass
32. 32.⚖️ 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 the layers (b) the order of pouring (c) the same three liquids
33. 33.🧺 Do we need turmeric powder for the density tower? (a) not needed (b) needed
34. 34.🍯 Is a coin denser or less dense than water? (a) less dense than water (b) denser than water
35. 35.📘 What does “dense” mean? (a) heavy for its size (b) very hot (c) very thin (d) very colourful
36. 36.🍯 Is cooking oil denser or less dense than water? (a) denser than water (b) less dense than water
37. 37.🔍 Which is the odd one out? (a) a pebble (b) honey (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? True or false: the order of pouring is what we measure. (a) True (b) False
40. 40.🔮 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 become solid (d) they mix for ever

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