Density Tower Experiment Worksheet

Science experiments lesson 2: Density tower: honey, water and oil · Set 640 · 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 rule keeps the density tower experiment safe? (a) do not lick the spoon (b) taste each layer (c) throw the glass (d) pour it on the floor
2. 2.True or false: cooking oil is less dense than water. (a) False (b) True
3. 3.True or false: a pebble is less dense than water. (a) True (b) False
4. 4.⚖️ 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 change it (c) we measure it
5. 5.🧺 Which of these is not needed for the density tower? (a) water with food colour (b) a tall clear glass (c) cooking oil (d) a mirror
6. 6.🔮 Predict: you shake oil and water hard in a closed bottle and wait. What happens? (a) they become solid (b) they turn to honey (c) they mix for ever (d) they separate again
7. 7.🍯 Is air denser or less dense than water? (a) denser than water (b) less dense than water
8. 8.🧺 Which of these is not needed for the density tower? (a) a tall clear glass (b) a spoon (c) yeast (d) water with food colour
9. 9.🧺 Do we need a spoon for the density tower? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the density tower. Which one is NOT needed? (a) a spoon (b) yeast (c) water with food colour (d) a tall clear glass
11. 11.🧺 Which of these is needed for the density tower? (a) turmeric powder (b) a tall clear glass (c) a balloon (d) yeast
12. 12.🍯 Which of these is less dense than water? (a) a coin (b) a pebble (c) honey (d) air
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 the layers”? (a) we change it (b) we keep it the same (c) we measure it
14. 14.True or false: a magnet is not needed for the density tower. (a) False (b) True
15. 15.🍯 Which of these is denser than water? (a) very salty water (b) air (c) a cork (d) a ping-pong ball
16. 16.⚖️ 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) True (b) False
17. 17.⚖️ 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 kept the same. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) very salty water (d) cooking oil
19. 19.🍯 Which of these is denser than water? (a) a cork (b) an ice cube (c) a ping-pong ball (d) honey
20. 20.True or false: an ice cube is denser than water. (a) True (b) False
21. 21.🔮 Predict: you gently drop a small cork into the tower. Where does it stop? (a) in the honey layer (b) under the honey (c) in the water layer (d) on top of the oil
22. 22.True or false: honey is needed for the density tower. (a) False (b) True
23. 23.True or false: a mirror is needed for the density tower. (a) True (b) False
24. 24.True or false: water with food colour is needed for the density tower. (a) True (b) False
25. 25.True or false: a cork is less dense than water. (a) True (b) False
26. 26.True or false: yeast is not needed for the density tower. (a) True (b) False
27. 27.True or false: a magnet is needed for the density tower. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a ping-pong ball (b) a glass marble (c) a cork (d) air
29. 29.⚖️ 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 same glass (c) the order of pouring
30. 30.🧺 Do we need a mirror for the density tower? (a) needed (b) not needed
31. 31.⚖️ 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 what we measure. (a) True (b) False
32. 32.🔮 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) at the very bottom (d) in the oil layer
33. 33.🍯 Is very salty water denser or less dense than water? (a) less dense than water (b) denser than water
34. 34.⚖️ 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 same glass (c) how much of each liquid (d) the order of pouring
35. 35.🍯 Is a ping-pong ball denser or less dense than water? (a) less dense than water (b) denser than water
36. 36.⚖️ 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
37. 37.🍯 Which of these is denser than water? (a) a cork (b) air (c) a ping-pong ball (d) a glass marble
38. 38.🔍 Which is the odd one out? (a) a coin (b) a ping-pong ball (c) a cork (d) air
39. 39.🔍 What do you see after pouring honey, water and oil into one glass? (a) the glass gets hot (b) bubbles of gas (c) three separate layers (d) one mixed colour
40. 40.🧺 Which of these is not needed for the density tower? (a) a battery cell (b) a spoon (c) cooking oil (d) honey

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