Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 397 · 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 ball of clay (b) a dry leaf (c) a coin (d) a pebble
2. 2.True or false: an ice cube floats on water. (a) True (b) False
3. 3.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
5. 5.⚖️ 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 kind of clay
6. 6.⚖️ 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 change it (b) we measure it (c) we keep it the same
7. 7.⚖️ 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 measure it (b) we keep it the same (c) we change it
8. 8.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
9. 9.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
10. 10.⚖️ 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) False (b) True
11. 11.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
12. 12.🚢 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
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) yeast
14. 14.🔍 Which is the odd one out? (a) an iron nail (b) a cork (c) a piece of thermocol (d) a feather
15. 15.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the air above (d) the cork itself
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the shape of the clay (d) the amount of clay
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 shape of the clay (b) whether it floats (c) the tub of water
18. 18.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
19. 19.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) neither of them (d) both of them
20. 20.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
22. 22.🔍 Which is the odd one out? (a) a pebble (b) an ice-cream stick (c) a glass marble (d) a steel spoon
23. 23.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
24. 24.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) a results table (d) a towel for spills
26. 26.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it dissolves (d) it sinks
27. 27.🧊 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
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) a mirror
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a towel for spills (c) a tub of water (d) a results table
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) a battery cell
31. 31.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) a cork (d) a glass marble
32. 32.True or false: a ping-pong ball floats on water. (a) True (b) False
33. 33.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
34. 34.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
35. 35.🛟 Does a cork float or sink in water? (a) sinks (b) floats
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a balloon
37. 37.⚖️ 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 shape of the clay (d) the tub of water
38. 38.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) turmeric powder (d) a towel for spills

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