Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 402 · 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.True or false: a dry leaf floats on water. (a) False (b) True
2. 2.⚖️ 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 keep it the same (b) we measure it (c) we change it
3. 3.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
4. 4.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
5. 5.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
6. 6.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
8. 8.🛟 Which of these sinks in water? (a) an ice cube (b) a metal key (c) a piece of thermocol (d) a feather
9. 9.⚖️ 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
10. 10.⚖️ 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 kind of clay (c) the shape of the clay
11. 11.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) turmeric powder (d) a tub of water
13. 13.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) ice is less dense (d) water is sticky
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
15. 15.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) yeast (d) a towel for spills
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
18. 18.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
19. 19.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
20. 20.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
22. 22.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
23. 23.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) a coin (d) a cork
24. 24.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
25. 25.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
26. 26.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) a dry leaf (d) an iron nail
27. 27.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
28. 28.⚖️ 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 kind of clay (b) the amount of clay (c) the shape of the clay (d) whether it floats
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.🛟 Which of these floats on water? (a) a coin (b) a pebble (c) a glass marble (d) a feather
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) a tub of water (d) small test objects
32. 32.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a steel spoon (c) a dry leaf (d) an ice cube
33. 33.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a metal key (d) an ice cube
34. 34.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it melts (d) it turns blue
35. 35.True or false: a ball of clay sinks in water. (a) False (b) True
36. 36.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
38. 38.⚖️ 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
39. 39.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
40. 40.🔍 Which is the odd one out? (a) an iron nail (b) a ball of clay (c) an ice cube (d) a steel spoon

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