Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 399 · 40 questions

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

1. 1.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) leave water on the floor (d) run around the tub
4. 4.🛟 Does a feather float or sink in water? (a) sinks (b) floats
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the kind of clay
6. 6.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
7. 7.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) a feather (d) a piece of thermocol
8. 8.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) small test objects (d) a battery cell
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) a mirror (d) a magnet
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a battery cell (d) a towel for spills
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) yeast
13. 13.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the air above (d) the water
14. 14.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) ice is very cold (d) water is sticky
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a mirror (d) a results table
16. 16.🔍 Which is the odd one out? (a) a ball of clay (b) a metal key (c) a glass marble (d) a piece of thermocol
17. 17.🔍 Which is the odd one out? (a) an ice-cream stick (b) a coin (c) a pebble (d) a metal key
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
19. 19.True or false: an ice-cream stick floats on water. (a) False (b) True
20. 20.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
21. 21.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
22. 22.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
23. 23.🛟 Which of these sinks in water? (a) a feather (b) a metal key (c) a cork (d) a piece of thermocol
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
25. 25.True or false: a cork floats on water. (a) True (b) False
26. 26.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) a balloon
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the shape of the clay (b) the amount of clay (c) the tub of water (d) whether it floats
29. 29.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) the kind of clay (d) whether it floats
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🛟 Which of these floats on water? (a) a glass marble (b) an ice-cream stick (c) a coin (d) a metal key
33. 33.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) yeast (d) a tub of water
35. 35.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a piece of thermocol (d) a coin
36. 36.True or false: a dry leaf floats on water. (a) True (b) False
37. 37.True or false: an empty capped bottle sinks in water. (a) True (b) False
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
39. 39.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
40. 40.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks

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