Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 188 · 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.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) an ice cube (d) a metal key
3. 3.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a tub of water (d) a towel for spills
5. 5.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
6. 6.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
7. 7.⚖️ 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 keep it the same (b) we change it (c) we measure it
8. 8.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
10. 10.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
11. 11.🛟 Does a cork float or sink in water? (a) sinks (b) floats
12. 12.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a piece of thermocol (d) a ball of clay
13. 13.⚖️ 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 kind of clay (b) the shape of the clay (c) the tub of water (d) the amount of clay
14. 14.True or false: a ping-pong ball sinks in water. (a) True (b) False
15. 15.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
16. 16.🧺 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 mirror
17. 17.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a magnet (d) a towel for spills
19. 19.🛟 Which of these sinks in water? (a) a dry leaf (b) a metal key (c) an ice cube (d) a feather
20. 20.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
21. 21.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
22. 22.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
23. 23.🛟 Does a coin float or sink in water? (a) sinks (b) floats
24. 24.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a coin (d) a piece of thermocol
26. 26.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
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) a tub of water (d) yeast
28. 28.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) run around the tub (d) play near a deep pond
29. 29.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
30. 30.🛟 Which of these sinks in water? (a) a pebble (b) an ice cube (c) a piece of thermocol (d) an empty capped bottle
31. 31.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
32. 32.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
35. 35.True or false: an iron nail floats on water. (a) True (b) False
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) small test objects (d) a results table
37. 37.🔍 Which is the odd one out? (a) a piece of thermocol (b) a coin (c) a dry leaf (d) an ice-cream stick
38. 38.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed

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