Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 787 · 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 shape of the clay”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🛟 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 win a prize (d) to hide the corks
3. 3.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
5. 5.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) turmeric powder (d) a magnet
8. 8.🧺 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) turmeric powder (d) a results table
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a balloon (d) a towel for spills
10. 10.🧺 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 results table (d) a magnet
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the tub of water (c) whether it floats (d) the shape of the clay
12. 12.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
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 tub of water (b) whether it floats (c) the shape of the clay (d) the kind of clay
14. 14.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) an iron nail (d) a piece of thermocol
15. 15.True or false: a steel spoon sinks in water. (a) False (b) True
16. 16.True or false: a cork sinks in water. (a) True (b) False
17. 17.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
18. 18.⚖️ 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 change it (b) we measure it (c) we keep it the same
19. 19.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
20. 20.⚖️ 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 tub of water (c) the shape of the clay
21. 21.🛟 Which of these sinks in water? (a) a steel spoon (b) a cork (c) an ice-cream stick (d) an ice cube
22. 22.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
23. 23.⚖️ 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 shape of the clay (c) the kind of clay
24. 24.🔍 Which is the odd one out? (a) a coin (b) a ball of clay (c) a glass marble (d) a cork
25. 25.🛟 Does a cork float or sink in water? (a) sinks (b) floats
26. 26.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
27. 27.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
28. 28.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
29. 29.🛟 Which of these floats on water? (a) an iron nail (b) an ice cube (c) a ball of clay (d) a pebble
30. 30.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
31. 31.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) an ice-cream stick (b) an iron nail (c) a metal key (d) a glass marble
33. 33.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it can float (d) it sinks faster
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 the one thing we change. (a) False (b) True
36. 36.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
37. 37.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
38. 38.True or false: an iron nail floats on water. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a towel for spills (d) small test objects

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