Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 114 · 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 ball of clay (b) a glass marble (c) an ice cube (d) an iron nail
2. 2.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
3. 3.True or false: a ping-pong ball sinks in water. (a) False (b) True
4. 4.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it dissolves (d) it sinks faster
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a mirror (d) a magnet
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a results table (d) turmeric powder
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
8. 8.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a tub of water (d) turmeric powder
10. 10.🛟 Which of these sinks in water? (a) a dry leaf (b) a glass marble (c) a ping-pong ball (d) an ice cube
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) a balloon
12. 12.🔍 Which is the odd one out? (a) an ice cube (b) a piece of thermocol (c) a ping-pong ball (d) a coin
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) a few ice cubes (d) more plain water
16. 16.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
17. 17.🛟 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
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
20. 20.True or false: an iron nail floats on water. (a) True (b) False
21. 21.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a piece of thermocol (c) an ice-cream stick (d) an iron nail
22. 22.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) the big log (d) neither of them
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a magnet (d) a mirror
26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
27. 27.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a glass marble (d) an empty capped bottle
28. 28.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
29. 29.🛟 Does a coin float or sink in water? (a) floats (b) sinks
30. 30.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) small test objects (d) yeast
32. 32.🧺 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 magnet
33. 33.⚖️ 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) the shape of the clay (c) the kind of clay (d) whether it floats
34. 34.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
35. 35.True or false: a cork floats on water. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a glass marble (b) a piece of thermocol (c) a coin (d) a steel spoon
37. 37.🔍 Which is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) an iron nail (d) a cork
38. 38.⚖️ 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
39. 39.🛟 Which of these sinks in water? (a) a metal key (b) a cork (c) a piece of thermocol (d) an ice cube
40. 40.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats

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