Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 501 · 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 not needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a towel for spills (d) a results table
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) small test objects (d) a balloon
3. 3.⚖️ 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
4. 4.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
5. 5.⚖️ 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 shape of the clay (c) the amount of clay (d) whether it floats
6. 6.True or false: a dry leaf sinks in water. (a) False (b) True
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
8. 8.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
9. 9.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
10. 10.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) a tub of water (d) a balloon
12. 12.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
13. 13.🛟 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
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it sinks faster (d) it dissolves
15. 15.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it bounces up (d) it floats
16. 16.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
17. 17.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) a balloon (d) a magnet
19. 19.⚖️ 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
20. 20.⚖️ 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 keep it the same (c) we measure it
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) turmeric powder
22. 22.⚖️ 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) False (b) True
23. 23.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a piece of thermocol (d) a glass marble
24. 24.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) an empty capped bottle (d) a coin
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
26. 26.⚖️ 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 amount of clay (c) the shape of the clay (d) the tub of water
27. 27.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a cork (b) a metal key (c) a ball of clay (d) a glass marble
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.True or false: a metal key floats on water. (a) True (b) False
31. 31.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
32. 32.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
33. 33.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
34. 34.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
35. 35.🛟 Does a coin float or sink in water? (a) floats (b) sinks
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
37. 37.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
38. 38.🧺 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) yeast (d) small test objects
39. 39.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
40. 40.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe

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