Floating and Sinking Experiment Worksheet

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

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