Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 108 · 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.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
2. 2.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) both of them (d) neither of them
3. 3.⚖️ 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 measure it (c) we keep it the same
4. 4.⚖️ 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
5. 5.🛟 Which of these sinks in water? (a) a cork (b) a ping-pong ball (c) a piece of thermocol (d) a glass marble
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a towel for spills (d) turmeric powder
7. 7.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a steel spoon (d) a dry leaf
8. 8.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
9. 9.True or false: a dry leaf floats on water. (a) False (b) True
10. 10.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
11. 11.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) ice is very cold (d) water is sticky
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) a towel for spills (d) small test objects
14. 14.🛟 Which of these floats on water? (a) a piece of thermocol (b) a coin (c) a metal key (d) a steel spoon
15. 15.🧺 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
16. 16.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
17. 17.🛟 Which of these floats on water? (a) a cork (b) a glass marble (c) an iron nail (d) a pebble
18. 18.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
19. 19.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a metal key (d) a ball of clay
20. 20.⚖️ 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
21. 21.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a battery cell (d) a magnet
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) yeast (d) a results table
25. 25.🔍 Which is the odd one out? (a) a feather (b) a steel spoon (c) a dry leaf (d) a piece of thermocol
26. 26.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
27. 27.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) a balloon
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a mirror (d) a results table
30. 30.⚖️ 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) True (b) False
31. 31.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
32. 32.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
33. 33.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
34. 34.True or false: a coin sinks in water. (a) False (b) True
35. 35.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) an iron nail (b) an ice cube (c) a piece of thermocol (d) a cork
37. 37.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
38. 38.🔍 Which is the odd one out? (a) a glass marble (b) an ice-cream stick (c) a steel spoon (d) a pebble
39. 39.🛟 Which of these sinks in water? (a) an iron nail (b) a cork (c) a dry leaf (d) an ice cube
40. 40.⚖️ 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) True (b) False

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