Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 103 · 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.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
2. 2.⚖️ 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) the tub of water (c) whether it floats
3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
4. 4.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) a pebble (d) a feather
5. 5.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
7. 7.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
8. 8.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a glass marble (d) an ice cube
9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
10. 10.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
11. 11.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a metal key (d) a feather
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) small test objects (d) a tub of water
13. 13.⚖️ 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
14. 14.True or false: an iron nail floats on water. (a) False (b) True
15. 15.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
16. 16.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
17. 17.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a piece of thermocol (d) a pebble
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the amount of clay (c) the shape of the clay
19. 19.⚖️ 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 keep it the same (b) we measure it (c) we change it
20. 20.⚖️ 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) True (b) False
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a battery cell (d) small test objects
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a towel for spills (d) a battery cell
24. 24.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) a towel for spills (d) a tub of water
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) turmeric powder (d) a battery cell
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a magnet (d) a tub of water
28. 28.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
29. 29.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the tub (d) the air above
30. 30.🔍 Which is the odd one out? (a) a piece of thermocol (b) a dry leaf (c) an ice cube (d) a steel spoon
31. 31.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
32. 32.True or false: a ping-pong ball floats on water. (a) False (b) True
33. 33.⚖️ 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) the kind of clay (c) whether it floats
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the kind of clay (c) the tub of water (d) the amount of clay
35. 35.⚖️ 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) False (b) True
36. 36.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
37. 37.True or false: an ice-cream stick floats on water. (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 “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.True or false: a dry leaf sinks in water. (a) True (b) False
40. 40.⚖️ 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 measure it (c) we change it

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