Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 223 · 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 is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) a coin (d) a cork
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) whether it floats (d) the amount of clay
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) yeast (d) a tub of water
4. 4.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a towel for spills (d) a results table
6. 6.⚖️ 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 amount of clay (c) the shape of the clay
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) a magnet
8. 8.🧺 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) small test objects (d) yeast
9. 9.🧺 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 balloon (d) small test objects
10. 10.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
11. 11.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
12. 12.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a magnet (d) a tub of water
14. 14.True or false: a steel spoon sinks in water. (a) False (b) True
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
16. 16.True or false: an ice cube floats on water. (a) True (b) False
17. 17.⚖️ 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 change it (c) we keep it the same
18. 18.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
19. 19.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
21. 21.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
23. 23.⚖️ 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
24. 24.🛟 Does a cork float or sink in water? (a) sinks (b) floats
25. 25.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a pebble (d) a steel spoon
26. 26.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
27. 27.🛟 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
28. 28.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
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 keep it the same (b) we measure it (c) we change it
30. 30.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to splash everyone (d) to hide the corks
31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
32. 32.True or false: a glass marble sinks in water. (a) True (b) False
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a towel for spills (d) a mirror
34. 34.⚖️ 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
35. 35.🛟 Which of these floats on water? (a) an iron nail (b) a cork (c) a ball of clay (d) a glass marble
36. 36.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it sinks (d) it floats higher
37. 37.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
38. 38.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a piece of thermocol (c) a steel spoon (d) an ice cube
39. 39.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it dissolves (d) it sinks
40. 40.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed

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