Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 305 · 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.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it sinks (d) it bounces up
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) turmeric powder (d) a tub of water
3. 3.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
4. 4.True or false: a ping-pong ball floats on water. (a) True (b) False
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the kind of clay (c) the tub of water (d) whether it floats
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
7. 7.🔍 Which is the odd one out? (a) a feather (b) a glass marble (c) a pebble (d) a metal key
8. 8.⚖️ 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 change it (b) we measure it (c) we keep it the same
9. 9.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of thermocol (c) an ice-cream stick (d) a ping-pong ball
10. 10.🛟 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
11. 11.🧺 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
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a tub of water (d) a results table
13. 13.🔍 Which is the odd one out? (a) a piece of thermocol (b) a glass marble (c) a dry leaf (d) a cork
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) small test objects (d) a mirror
16. 16.⚖️ 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
17. 17.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
18. 18.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
19. 19.⚖️ 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 amount of clay
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a towel for spills (d) a tub of water
21. 21.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
22. 22.⚖️ 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 kind of clay (c) the shape of the clay (d) whether it floats
23. 23.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
24. 24.🛟 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
25. 25.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
26. 26.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
27. 27.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a towel for spills (d) turmeric powder
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) small test objects (d) a towel for spills
30. 30.⚖️ 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
31. 31.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
32. 32.🛟 Which of these floats on water? (a) a steel spoon (b) a pebble (c) a coin (d) a cork
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a results table (d) a tub of water
34. 34.🛟 Does a ping-pong ball 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? What do we do with “the shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.True or false: a metal key floats on water. (a) True (b) False
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🛟 Which of these floats on water? (a) a dry leaf (b) a steel spoon (c) a pebble (d) a ball of clay
40. 40.⚖️ 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

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