Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 47 · 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 is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a battery cell (d) a tub of water
2. 2.🧺 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 magnet (d) small test objects
3. 3.⚖️ 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 shape of the clay (d) the kind of clay
4. 4.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
6. 6.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
7. 7.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) it has a magnet (d) steel is very light
8. 8.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
9. 9.🧺 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 balloon (d) small test objects
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 shape of the clay (c) the amount of clay
11. 11.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
12. 12.🛟 Which of these floats on water? (a) a metal key (b) a feather (c) an iron nail (d) a ball of clay
13. 13.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a battery cell (d) a towel for spills
15. 15.⚖️ 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
16. 16.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
17. 17.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) a dry leaf (d) a ball of clay
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a results table (d) a towel for spills
19. 19.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) an iron nail (d) a ping-pong ball
20. 20.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) a piece of thermocol (d) a pebble
21. 21.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
22. 22.⚖️ 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) True (b) False
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a balloon (c) a results table (d) a magnet
24. 24.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a towel for spills (d) yeast
28. 28.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) a mirror
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) a balloon
31. 31.🛟 Does a feather float or sink in water? (a) sinks (b) floats
32. 32.True or false: a feather floats on water. (a) True (b) False
33. 33.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
34. 34.🛟 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) wipe up spills at once (d) run around the tub
35. 35.🛟 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 hide the corks (d) to keep children safe
36. 36.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) a metal key (d) an ice cube
37. 37.⚖️ 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) False (b) True
38. 38.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
39. 39.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
40. 40.🧺 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) turmeric powder (d) a tub of water

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