Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 163 · 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 is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) play near a deep pond (d) wipe up spills at once
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) small test objects (d) a results table
3. 3.🛟 Which of these floats on water? (a) a ball of clay (b) a feather (c) a steel spoon (d) a pebble
4. 4.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ping-pong ball (c) a feather (d) a steel spoon
5. 5.⚖️ 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
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a towel for spills (d) a tub of water
7. 7.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
8. 8.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it can float (d) it sinks faster
9. 9.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
10. 10.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
11. 11.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) ice is magnetic (d) water is sticky
12. 12.True or false: a pebble sinks in water. (a) True (b) False
13. 13.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a mirror (c) a results table (d) a tub of water
16. 16.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
17. 17.True or false: a steel spoon sinks in water. (a) False (b) True
18. 18.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a mirror (d) turmeric powder
20. 20.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a towel for spills (d) a tub of water
22. 22.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
23. 23.True or false: a ping-pong ball sinks in water. (a) True (b) False
24. 24.⚖️ 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
25. 25.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
26. 26.🔍 Which is the odd one out? (a) a feather (b) a glass marble (c) a steel spoon (d) a metal key
27. 27.True or false: a ball of clay sinks in water. (a) True (b) False
28. 28.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
29. 29.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
30. 30.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
34. 34.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a towel for spills (d) a tub of water
36. 36.⚖️ 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
37. 37.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
38. 38.True or false: a piece of thermocol sinks in water. (a) False (b) True
39. 39.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a results table (c) small test objects (d) a towel for spills

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids