Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 567 · 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 of these floats on water? (a) a pebble (b) a ball of clay (c) an iron nail (d) an ice cube
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a balloon (d) small test objects
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
4. 4.⚖️ 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
5. 5.⚖️ 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 change it (b) we keep it the same (c) we measure it
6. 6.🛟 Does a feather float or sink in water? (a) floats (b) sinks
7. 7.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
9. 9.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
10. 10.True or false: a ping-pong ball floats on water. (a) False (b) True
11. 11.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it melts (d) it floats higher
12. 12.🛟 Which of these sinks in water? (a) a ball of clay (b) an ice-cream stick (c) an empty capped bottle (d) a piece of thermocol
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a battery cell (c) yeast (d) a balloon
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 amount of clay (b) the kind of clay (c) the shape of the clay (d) whether it floats
15. 15.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
16. 16.🥚 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
17. 17.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
18. 18.True or false: a ball of clay floats on water. (a) False (b) True
19. 19.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) yeast (d) a balloon
21. 21.🛟 Which of these floats on water? (a) a coin (b) a pebble (c) an iron nail (d) an ice-cream stick
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a tub of water (d) a results table
23. 23.⚖️ 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
24. 24.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
25. 25.⚖️ 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) True (b) False
26. 26.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) a tub of water (d) a towel for spills
28. 28.🛟 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
29. 29.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
30. 30.True or false: a coin floats on water. (a) True (b) False
31. 31.🛟 Which of these floats on water? (a) a coin (b) a cork (c) a pebble (d) a ball of clay
32. 32.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice cube (c) a glass marble (d) a ping-pong ball
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
34. 34.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) whether it floats (d) the kind of clay
36. 36.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
37. 37.🔍 Which is the odd one out? (a) an empty capped bottle (b) a cork (c) an ice cube (d) a glass marble
38. 38.True or false: a metal key sinks in water. (a) True (b) False
39. 39.True or false: a cork floats on water. (a) True (b) False
40. 40.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True

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