Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 207 · 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.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
2. 2.⚖️ 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 shape of the clay (d) the amount of clay
3. 3.🔍 Which is the odd one out? (a) a steel spoon (b) a cork (c) an ice-cream stick (d) a ping-pong ball
4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) both of them (d) the small pebble
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a balloon (d) a results table
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
8. 8.🧺 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 tub of water (d) a balloon
9. 9.True or false: a ping-pong ball sinks in water. (a) False (b) True
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a balloon (d) small test objects
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a magnet (d) a tub of water
12. 12.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
13. 13.⚖️ 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 measure it (b) we keep it the same (c) we change it
14. 14.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
15. 15.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) an iron nail (d) a cork
16. 16.🧺 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 mirror (d) a tub of water
17. 17.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) more plain water (d) a few ice cubes
18. 18.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.True or false: a ping-pong ball floats on water. (a) True (b) False
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
22. 22.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
23. 23.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
24. 24.True or false: a piece of thermocol sinks in water. (a) False (b) True
25. 25.True or false: a ball of clay sinks in water. (a) True (b) False
26. 26.⚖️ 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 change it (c) we keep it the same
27. 27.🔍 Which is the odd one out? (a) a feather (b) a dry leaf (c) an ice-cream stick (d) a coin
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) turmeric powder (d) a balloon
29. 29.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a feather (d) a metal key
31. 31.🔍 Which is the odd one out? (a) an ice-cream stick (b) a glass marble (c) a piece of thermocol (d) an ice cube
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a tub of water (d) a towel for spills
33. 33.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) a metal key (d) an iron nail
34. 34.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) an ice cube (d) an iron nail
35. 35.🛟 Which of these sinks in water? (a) a coin (b) a cork (c) a ping-pong ball (d) a dry leaf
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) a towel for spills (d) small test objects
37. 37.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) steel is very light (d) sea water is warm
38. 38.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
39. 39.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it dissolves (d) it sinks faster
40. 40.True or false: a coin floats on water. (a) False (b) True

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