Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 765 · 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.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) a metal key (d) an ice cube
2. 2.⚖️ 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
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.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
5. 5.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) yeast (d) small test objects
8. 8.⚖️ 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
9. 9.⚖️ 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
10. 10.🧺 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 results table (d) a mirror
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) turmeric powder (d) small test objects
13. 13.True or false: a ping-pong ball sinks in water. (a) False (b) True
14. 14.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
15. 15.⚖️ 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) True (b) False
16. 16.⚖️ 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 amount of clay
17. 17.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
18. 18.🛟 Does a cork float or sink in water? (a) sinks (b) floats
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) turmeric powder
20. 20.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
21. 21.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a magnet (d) a towel for spills
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) the kind of clay (d) whether it floats
24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
25. 25.⚖️ 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 tub of water (c) the amount of clay (d) the shape of the clay
26. 26.🛟 Which of these floats on water? (a) a metal key (b) a feather (c) a glass marble (d) a coin
27. 27.🛟 Which of these floats on water? (a) a cork (b) a pebble (c) an iron nail (d) a metal key
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a balloon (c) a tub of water (d) a towel for spills
29. 29.🔍 Which is the odd one out? (a) a ball of clay (b) a feather (c) a steel spoon (d) a metal key
30. 30.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
31. 31.⚖️ 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
32. 32.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble
33. 33.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
35. 35.True or false: a ping-pong ball floats on water. (a) False (b) True
36. 36.⚖️ 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
37. 37.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) an ice-cream stick (d) a coin
38. 38.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
39. 39.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
40. 40.🛟 Which of these sinks in water? (a) a feather (b) a cork (c) a glass marble (d) an empty capped bottle

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