Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 967 · 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 does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
2. 2.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
3. 3.True or false: a glass marble floats on water. (a) True (b) False
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
5. 5.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a tub of water (d) small test objects
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a mirror (d) a towel for spills
8. 8.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it dissolves (d) it bounces up
9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
10. 10.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a results table
12. 12.⚖️ 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
13. 13.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) the big log (d) both of them
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) a mirror (d) a results table
15. 15.⚖️ 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
16. 16.True or false: a ball of clay floats on water. (a) True (b) False
17. 17.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
18. 18.⚖️ 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 tub of water (c) the shape of the clay (d) the amount of clay
19. 19.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
20. 20.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
21. 21.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
22. 22.⚖️ 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 shape of the clay (b) the amount of clay (c) the tub of water (d) the kind of clay
23. 23.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
24. 24.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
25. 25.⚖️ 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 change it (c) we measure it
26. 26.⚖️ 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
27. 27.True or false: a steel spoon floats on water. (a) False (b) True
28. 28.True or false: an iron nail floats on water. (a) False (b) True
29. 29.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
30. 30.⚖️ 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
31. 31.True or false: a cork floats on water. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) a metal key (d) a dry leaf
33. 33.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
34. 34.🧺 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 results table
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a magnet (c) a tub of water (d) small test objects
36. 36.🛟 Which of these sinks in water? (a) an ice cube (b) a cork (c) a ball of clay (d) an empty capped bottle
37. 37.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
38. 38.⚖️ 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 measure it (c) we keep it the same
39. 39.True or false: an ice-cream stick sinks in water. (a) True (b) False
40. 40.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) a ball of clay (d) a cork

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