Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 384 · 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 “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the shape of the clay (c) the amount of clay (d) whether it floats
4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) yeast (c) small test objects (d) a magnet
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a towel for spills (d) a mirror
8. 8.True or false: a steel spoon floats on water. (a) False (b) True
9. 9.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
10. 10.True or false: a steel spoon sinks in water. (a) True (b) False
11. 11.⚖️ 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) True (b) False
12. 12.⚖️ 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
13. 13.🔍 Which is the odd one out? (a) a coin (b) a dry leaf (c) a steel spoon (d) an iron nail
14. 14.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
15. 15.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it sinks faster (d) it dissolves
16. 16.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
17. 17.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an empty capped bottle (c) a glass marble (d) a cork
18. 18.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
19. 19.🔍 Which is the odd one out? (a) a steel spoon (b) a cork (c) an empty capped bottle (d) a feather
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a results table (c) small test objects (d) a towel for spills
21. 21.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a ball of clay (d) a ping-pong ball
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) small test objects
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) small test objects (d) a towel for spills
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a battery cell (d) a tub of water
25. 25.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
26. 26.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it floats higher (d) it melts
27. 27.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a tub of water (d) a results table
29. 29.🛟 Which of these floats on water? (a) a ball of clay (b) an ice-cream stick (c) a pebble (d) a coin
30. 30.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
31. 31.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) yeast (d) small test objects
33. 33.True or false: a feather sinks in water. (a) False (b) True
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the tub of water
35. 35.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ball of clay (c) a cork (d) a ping-pong ball
36. 36.🔍 Which is the odd one out? (a) a glass marble (b) a metal key (c) a piece of thermocol (d) an iron nail
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a balloon (d) a towel for spills
38. 38.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) a steel spoon (d) an ice cube
39. 39.🛟 Which of these floats on water? (a) an iron nail (b) a steel spoon (c) a ball of clay (d) an ice cube
40. 40.⚖️ 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

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