Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 302 · 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.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
2. 2.⚖️ 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
3. 3.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
5. 5.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
6. 6.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
7. 7.⚖️ 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 measure it (c) we keep it the same
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) turmeric powder (d) a tub of water
9. 9.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a glass marble (c) a cork (d) a piece of thermocol
10. 10.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) a dry leaf (d) a pebble
11. 11.⚖️ 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
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a results table (d) a magnet
13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
14. 14.🧺 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
15. 15.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it floats (d) it dissolves
16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
17. 17.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the tub (d) the air above
18. 18.🛟 Does a cork float or sink in water? (a) sinks (b) floats
19. 19.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
20. 20.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) a metal key (d) a ping-pong ball
21. 21.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) an iron nail (d) a cork
22. 22.🛟 Which of these floats on water? (a) a coin (b) an empty capped bottle (c) a ball of clay (d) a pebble
23. 23.True or false: a coin sinks in water. (a) False (b) True
24. 24.🛟 Which of these sinks in water? (a) a cork (b) a pebble (c) a ping-pong ball (d) a feather
25. 25.🔍 Which is the odd one out? (a) a cork (b) a glass marble (c) an ice-cream stick (d) a ping-pong ball
26. 26.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
27. 27.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
28. 28.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a tub of water (d) a results table
30. 30.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) a glass marble (d) a dry leaf
31. 31.⚖️ 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 shape of the clay (c) the tub of water
32. 32.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
33. 33.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
34. 34.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
35. 35.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
36. 36.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
38. 38.🛟 Which of these floats on water? (a) an iron nail (b) a glass marble (c) a metal key (d) a ping-pong ball
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a mirror (d) a balloon
40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a towel for spills (d) a magnet

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