Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 912 · 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 kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
2. 2.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
3. 3.🔍 Which is the odd one out? (a) an iron nail (b) a dry leaf (c) a ball of clay (d) a coin
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a battery cell (d) a results table
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a results table (d) a towel for spills
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) a mirror
8. 8.⚖️ 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) whether it floats (c) the kind of clay (d) the shape of the clay
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to hide the corks (d) to splash everyone
10. 10.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
11. 11.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it melts (d) it floats higher
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
13. 13.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a piece of thermocol (d) a glass marble
14. 14.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
15. 15.⚖️ 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
16. 16.True or false: a mirror is not needed for the float-or-sink test. (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 tub of water”? (a) we change it (b) we keep it the same (c) we measure it
18. 18.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
19. 19.⚖️ 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
20. 20.🧊 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
21. 21.⚖️ 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) False (b) True
22. 22.🔮 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
23. 23.🛟 Which of these floats on water? (a) a cork (b) a steel spoon (c) a glass marble (d) a pebble
24. 24.⚖️ 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) True (b) False
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) small test objects (d) a magnet
26. 26.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a tub of water (d) a towel for spills
28. 28.True or false: an ice-cream stick floats on water. (a) False (b) True
29. 29.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
30. 30.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a towel for spills (d) a tub of water
32. 32.True or false: a glass marble sinks in water. (a) True (b) False
33. 33.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) a glass marble (d) a feather
34. 34.⚖️ 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 change it (c) we measure it
35. 35.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a dry leaf (c) an empty capped bottle (d) a pebble
36. 36.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) a feather (d) an ice-cream stick
37. 37.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
38. 38.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
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 change it (c) we keep it the same
40. 40.🛟 Which of these sinks in water? (a) an ice cube (b) a cork (c) a coin (d) an ice-cream stick

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