Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 72 · 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 shape of the clay”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) yeast
4. 4.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) a dry leaf (d) a pebble
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
6. 6.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) more plain water (d) a few ice cubes
7. 7.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
8. 8.🧺 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) turmeric powder (d) a towel for spills
9. 9.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an iron nail (c) an empty capped bottle (d) a cork
10. 10.⚖️ 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) False (b) True
11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a towel for spills (c) a tub of water (d) small test objects
12. 12.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) an ice-cream stick (d) a metal key
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
14. 14.⚖️ 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 kind of clay (b) the tub of water (c) whether it floats (d) the shape of the clay
15. 15.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
16. 16.True or false: a ping-pong ball sinks in water. (a) True (b) False
17. 17.⚖️ 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 kind of clay
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) small test objects (d) a results table
19. 19.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
20. 20.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe
21. 21.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a mirror (c) a tub of water (d) a towel for spills
24. 24.🛟 Which of these floats on water? (a) a cork (b) a metal key (c) a ball of clay (d) a steel spoon
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) a mirror (d) a results table
26. 26.🛟 Which of these sinks in water? (a) a pebble (b) a dry leaf (c) an empty capped bottle (d) a piece of thermocol
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a mirror (c) a results table (d) a tub of water
28. 28.True or false: a ball of clay floats on water. (a) False (b) True
29. 29.🛟 Which of these sinks in water? (a) a metal key (b) an ice-cream stick (c) a piece of thermocol (d) a dry leaf
30. 30.🧺 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 tub of water
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a magnet (d) a tub of water
32. 32.🛟 Which of these sinks in water? (a) a coin (b) an ice cube (c) a ping-pong ball (d) an ice-cream stick
33. 33.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) a cork (d) a steel spoon
34. 34.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
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 what we measure. (a) True (b) False
36. 36.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
37. 37.True or false: an empty capped bottle sinks in water. (a) True (b) False
38. 38.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it turns blue (d) it floats higher
39. 39.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) water is sticky (d) ice is very cold
40. 40.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True

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