Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 280 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to splash everyone (d) to win a prize
2. 2.🛟 Does a coin float or sink in water? (a) sinks (b) floats
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a results table (d) a towel for spills
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
5. 5.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) a ball of clay (d) a glass marble
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
7. 7.True or false: an iron nail sinks in water. (a) False (b) True
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a battery cell (d) a towel for spills
9. 9.True or false: a piece of thermocol sinks in water. (a) False (b) True
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) small test objects (d) a mirror
11. 11.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
12. 12.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) a ball of clay (d) a dry leaf
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
14. 14.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
15. 15.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
16. 16.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we measure it (b) we keep it the same (c) we change it
18. 18.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) an ice-cream stick (d) a pebble
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a magnet (d) a results table
20. 20.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
21. 21.⚖️ 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 change it (c) we keep it the same
22. 22.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
23. 23.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) a coin (b) a feather (c) a ball of clay (d) an iron nail
25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) yeast (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 tub of water (b) the shape of the clay (c) the kind of clay (d) the amount of clay
29. 29.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
30. 30.⚖️ 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) False (b) True
31. 31.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
32. 32.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a ball of clay (d) a cork
33. 33.True or false: a piece of thermocol floats on water. (a) False (b) True
34. 34.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
36. 36.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
38. 38.🛟 Which of these floats on water? (a) an empty capped bottle (b) a metal key (c) a ball of clay (d) an iron nail
39. 39.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
40. 40.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks

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