Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 847 · 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.True or false: an iron nail floats on water. (a) True (b) False
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a balloon (d) a results table
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a battery cell (d) a tub of water
4. 4.🛟 Does a cork float or sink in water? (a) sinks (b) floats
5. 5.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
6. 6.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) turmeric powder (d) yeast
8. 8.🛟 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
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a dry leaf (c) a piece of thermocol (d) a metal key
11. 11.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a dry leaf (c) a cork (d) a steel spoon
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) a towel for spills (d) a results table
13. 13.⚖️ 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) True (b) False
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
15. 15.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
16. 16.🧺 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 results table (d) turmeric powder
17. 17.🔮 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
18. 18.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
19. 19.⚖️ 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
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.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
22. 22.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
23. 23.🔍 Which is the odd one out? (a) a piece of thermocol (b) a glass marble (c) a steel spoon (d) a pebble
24. 24.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a balloon (d) a results table
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) the big log (d) both of them
27. 27.⚖️ 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 shape of the clay (d) the kind of clay
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a battery cell (c) a tub of water (d) a magnet
29. 29.True or false: a metal key floats on water. (a) True (b) False
30. 30.⚖️ 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 tub of water (c) the shape of the clay
31. 31.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves
32. 32.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) yeast
34. 34.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
35. 35.⚖️ 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
36. 36.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
37. 37.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
38. 38.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
39. 39.⚖️ 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
40. 40.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True

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