Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 242 · 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? True or false: the amount of clay is kept the same. (a) False (b) True
2. 2.⚖️ 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
3. 3.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
4. 4.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
5. 5.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
6. 6.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
7. 7.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
8. 8.True or false: a ping-pong ball sinks in water. (a) True (b) False
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a balloon (c) a towel for spills (d) a tub of water
10. 10.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
11. 11.🛟 Which of these floats on water? (a) a metal key (b) an empty capped bottle (c) a coin (d) a steel spoon
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) whether it floats (d) the amount of clay
13. 13.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
14. 14.🔍 Which is the odd one out? (a) a glass marble (b) a piece of thermocol (c) a dry leaf (d) an ice-cream stick
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a balloon (c) a results table (d) a tub of water
16. 16.True or false: a metal key floats on 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 kind of clay (b) the shape of the clay (c) whether it floats
18. 18.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
19. 19.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
20. 20.🛟 Which of these sinks in water? (a) a glass marble (b) a ping-pong ball (c) a cork (d) a feather
21. 21.🛟 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 keep children safe (d) to splash everyone
22. 22.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
23. 23.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
24. 24.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a tub of water (c) a towel for spills (d) a results table
26. 26.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
28. 28.True or false: an iron nail sinks in water. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a dry leaf (d) a coin
30. 30.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
31. 31.True or false: an empty capped bottle sinks in water. (a) True (b) False
32. 32.⚖️ 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) True (b) False
33. 33.🔍 Which is the odd one out? (a) a steel spoon (b) an iron nail (c) a feather (d) a glass marble
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) a piece of thermocol (b) a metal key (c) a feather (d) a ping-pong ball
36. 36.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a cork (d) a coin
37. 37.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
38. 38.⚖️ 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 tub of water (d) the kind of clay
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a battery cell (d) a tub of water

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