Floating and Sinking Experiment Worksheet

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

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