Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 357 · 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.🛟 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 splash everyone (d) to keep children safe
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the kind of clay
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) a magnet
4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
5. 5.⚖️ 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
6. 6.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a coin (d) an empty capped bottle
7. 7.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
8. 8.⚖️ 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) True (b) False
9. 9.🛟 Does a cork float or sink in water? (a) sinks (b) floats
10. 10.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
11. 11.⚖️ 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 keep it the same (b) we measure it (c) we change it
12. 12.🛟 Which of these sinks in water? (a) an ice cube (b) a steel spoon (c) a piece of thermocol (d) a ping-pong ball
13. 13.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a mirror (d) a tub of water
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a magnet (d) small test objects
16. 16.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
17. 17.🧺 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 battery cell (d) a results table
18. 18.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
19. 19.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) small test objects (d) a towel for spills
21. 21.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) an ice-cream stick (d) a glass marble
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) a little shaking (d) more plain water
23. 23.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a battery cell (d) turmeric powder
25. 25.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
26. 26.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) a tub of water (d) a towel for spills
28. 28.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
31. 31.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a feather (d) a dry leaf
32. 32.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a glass marble (b) a feather (c) a piece of thermocol (d) a cork
34. 34.🛟 Does a coin float or sink in water? (a) sinks (b) floats
35. 35.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
36. 36.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) a cork (d) a coin
37. 37.True or false: an ice-cream stick sinks in water. (a) True (b) False
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.⚖️ 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) False (b) True

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