Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 469 · 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? What do we do with “the kind of clay”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) a towel for spills (d) small test objects
3. 3.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
4. 4.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) more plain water (d) lots of salt stirred in
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a battery cell (d) a towel for spills
6. 6.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) yeast (d) small test objects
9. 9.True or false: a dry leaf sinks in water. (a) False (b) True
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) a battery cell (d) a mirror
11. 11.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) a metal key (d) an ice-cream stick
12. 12.🧺 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 results table (d) a balloon
13. 13.True or false: a ball of clay sinks in water. (a) True (b) False
14. 14.True or false: a coin floats on water. (a) True (b) False
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a tub of water (d) yeast
16. 16.True or false: an ice-cream stick sinks in water. (a) True (b) False
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
18. 18.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) a piece of thermocol (d) a steel spoon
19. 19.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
20. 20.True or false: a metal key floats on water. (a) False (b) True
21. 21.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
22. 22.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
23. 23.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
24. 24.⚖️ 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
25. 25.🛟 Which of these floats on water? (a) an iron nail (b) a cork (c) a pebble (d) a steel spoon
26. 26.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) an ice cube (d) an empty capped bottle
27. 27.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the amount of clay
29. 29.⚖️ 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
30. 30.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
32. 32.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
33. 33.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
34. 34.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) a ping-pong ball (d) a steel spoon
35. 35.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
36. 36.🧺 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) turmeric powder
37. 37.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
38. 38.⚖️ 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
39. 39.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
40. 40.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a pebble (d) a ping-pong ball

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