Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 645 · 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.⚖️ 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 amount of clay (d) the shape of the clay
2. 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
3. 3.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) small test objects (d) a tub of water
5. 5.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
6. 6.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
8. 8.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
9. 9.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
10. 10.⚖️ 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
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.True or false: a piece of thermocol sinks in water. (a) False (b) True
13. 13.⚖️ 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
14. 14.⚖️ 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 kind of clay
15. 15.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
16. 16.⚖️ 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) False (b) True
17. 17.True or false: an ice cube floats on water. (a) True (b) False
18. 18.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
19. 19.⚖️ 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 amount of clay (b) whether it floats (c) the tub of water (d) the shape of the clay
20. 20.🧺 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) a magnet
21. 21.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
22. 22.🔮 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
23. 23.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
24. 24.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
26. 26.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
28. 28.🧺 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 towel for spills (d) yeast
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
30. 30.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🛟 Which of these floats on water? (a) a metal key (b) a feather (c) a steel spoon (d) a coin
33. 33.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) a steel spoon (d) a feather
34. 34.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a piece of thermocol (d) a glass marble
35. 35.🥚 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
36. 36.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
37. 37.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
38. 38.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
39. 39.⚖️ 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
40. 40.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks

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