Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 880 · 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 metal key (b) a glass marble (c) a ping-pong ball (d) an iron nail
2. 2.⚖️ 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
3. 3.⚖️ 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 tub of water (d) the shape of the clay
4. 4.⚖️ 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
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
6. 6.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
7. 7.⚖️ 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
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a results table (d) a tub of water
9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) a tub of water (d) a towel for spills
10. 10.⚖️ 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) the amount of clay (c) whether it floats
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) the tub of water (d) whether it floats
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) a tub of water (d) small test objects
14. 14.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
15. 15.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
17. 17.True or false: a ball of clay floats on water. (a) False (b) True
18. 18.⚖️ 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 keep it the same (b) we change it (c) we measure it
19. 19.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) an empty capped bottle (d) a ball of clay
20. 20.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
21. 21.🧺 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 balloon (d) a results table
22. 22.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) an ice-cream stick (d) a steel spoon
23. 23.🔍 Which is the odd one out? (a) an ice-cream stick (b) a piece of thermocol (c) an iron nail (d) a ping-pong ball
24. 24.⚖️ 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
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a few ice cubes (d) a little shaking
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a magnet (d) a towel for spills
27. 27.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
28. 28.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a cork (d) a metal key
29. 29.🛟 Which of these sinks in water? (a) a coin (b) a cork (c) an ice cube (d) an ice-cream stick
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a balloon (d) a tub of water
31. 31.🔍 Which is the odd one out? (a) a steel spoon (b) a metal key (c) a coin (d) an ice cube
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
33. 33.🛟 Does a coin float or sink in water? (a) sinks (b) floats
34. 34.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) leave water on the floor (d) run around the tub
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a magnet (d) turmeric powder
36. 36.⚖️ 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 kind of clay (c) the shape of the clay
37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
39. 39.True or false: a dry leaf floats on water. (a) False (b) True
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) turmeric powder (c) a towel for spills (d) a magnet

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