Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 216 · 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 odd one out? (a) a coin (b) a pebble (c) a glass marble (d) a feather
2. 2.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
3. 3.⚖️ 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
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a towel for spills (d) yeast
5. 5.🛟 Which of these floats on water? (a) an ice-cream stick (b) a coin (c) a pebble (d) a metal key
6. 6.⚖️ 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 measure it (b) we change it (c) we keep it the same
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
8. 8.🚢 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
9. 9.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) the big log (d) both of them
10. 10.⚖️ 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 kind of clay (c) the tub of water (d) the shape of the clay
11. 11.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a feather (d) a coin
12. 12.True or false: an empty capped bottle floats on water. (a) False (b) True
13. 13.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
14. 14.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) a pebble (d) a ping-pong ball
16. 16.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ping-pong ball (c) a dry leaf (d) a steel spoon
17. 17.True or false: a dry leaf sinks in water. (a) False (b) True
18. 18.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) yeast (d) a magnet
20. 20.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
21. 21.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
22. 22.⚖️ 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 amount of clay (c) the shape of the clay
23. 23.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) an iron nail (d) an empty capped bottle
24. 24.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a metal key (c) a cork (d) a piece of thermocol
25. 25.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
26. 26.⚖️ 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 keep it the same (c) we measure it
27. 27.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a steel spoon (d) an ice cube
28. 28.🧺 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) a magnet (d) small test objects
29. 29.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
30. 30.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
31. 31.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
32. 32.🔍 Which is the odd one out? (a) an iron nail (b) a metal key (c) a pebble (d) a cork
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a battery cell (d) a results table
34. 34.True or false: a glass marble sinks in water. (a) True (b) False
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) a dry leaf (b) an iron nail (c) a coin (d) a pebble
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
38. 38.⚖️ 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) the tub of water (c) whether it floats
39. 39.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
40. 40.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True

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