Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 511 · 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.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) a dry leaf (b) a cork (c) a glass marble (d) an empty capped bottle
3. 3.⚖️ 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
4. 4.True or false: a steel spoon floats on water. (a) True (b) False
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
6. 6.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
7. 7.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
8. 8.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
9. 9.🔍 Which is the odd one out? (a) a cork (b) an ice-cream stick (c) a steel spoon (d) an empty capped bottle
10. 10.🔍 Which is the odd one out? (a) a feather (b) a steel spoon (c) a metal key (d) a ball of clay
11. 11.⚖️ 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
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) whether it floats (b) the shape of the clay (c) the tub of water (d) the kind of clay
13. 13.⚖️ 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 keep it the same (c) we measure it
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) the kind of clay (d) whether it floats
16. 16.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
17. 17.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
18. 18.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
19. 19.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
20. 20.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it melts (d) it turns blue
21. 21.🧺 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) small test objects (d) a tub of water
22. 22.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a magnet
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a results table (d) a tub of water
25. 25.⚖️ 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) True (b) False
26. 26.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
27. 27.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a steel spoon (c) a ping-pong ball (d) an ice-cream stick
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) yeast (d) a magnet
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) small test objects (d) turmeric powder
31. 31.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
32. 32.True or false: a piece of thermocol floats on water. (a) False (b) True
33. 33.⚖️ 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 measure it (b) we keep it the same (c) we change it
34. 34.⚖️ 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
35. 35.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
36. 36.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
37. 37.⚖️ 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
38. 38.🛟 Does a feather float or sink in water? (a) sinks (b) floats
39. 39.True or false: an iron nail sinks in water. (a) False (b) True
40. 40.⚖️ 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) whether it floats (c) the kind of clay

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