Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 797 · 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 is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a results table (d) a tub of water
2. 2.🔮 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
3. 3.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a cork (d) an iron nail
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a battery cell (c) a magnet (d) a tub of water
5. 5.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a results table
7. 7.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it sinks (d) it floats higher
8. 8.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) a coin (d) an ice cube
9. 9.🛟 Which of these floats on water? (a) an iron nail (b) a glass marble (c) a pebble (d) an ice cube
10. 10.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
11. 11.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a mirror (c) a towel for spills (d) a tub of water
13. 13.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
14. 14.🛟 Does a feather float or sink in water? (a) floats (b) sinks
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) a battery cell
16. 16.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a ping-pong ball (d) a steel spoon
17. 17.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
19. 19.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a mirror (c) a tub of water (d) small test objects
21. 21.⚖️ 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 change it (b) we keep it the same (c) we measure it
22. 22.⚖️ 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) False (b) True
23. 23.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
25. 25.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the air above (d) the cork itself
26. 26.⚖️ 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
27. 27.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
28. 28.⚖️ 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 tub of water (c) the kind of clay (d) the shape of the clay
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) small test objects (d) turmeric powder
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a tub of water (d) turmeric powder
31. 31.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it bounces up (d) it floats
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the amount of clay (d) the tub of water
34. 34.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
35. 35.🚢 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
36. 36.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a glass marble (d) an empty capped bottle
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) a towel for spills (d) small test objects
38. 38.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
39. 39.🛟 Which of these sinks in water? (a) an iron nail (b) an empty capped bottle (c) an ice-cream stick (d) a cork
40. 40.True or false: an empty capped bottle sinks in water. (a) True (b) False

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