Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 647 · 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.🔮 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
2. 2.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) ice is very cold (d) water is sticky
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a results table (d) a tub of water
4. 4.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
5. 5.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a tub of water (d) a results table
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a magnet (d) small test objects
8. 8.⚖️ 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
9. 9.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
10. 10.⚖️ 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 measure it (c) we change it
11. 11.⚖️ 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
12. 12.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a piece of thermocol (d) a steel spoon
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) yeast (d) a battery cell
16. 16.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) an ice-cream stick (d) a glass marble
17. 17.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
18. 18.⚖️ 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 keep it the same (b) we measure it (c) we change it
19. 19.🛟 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 hide the corks (d) to keep children safe
20. 20.⚖️ 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
21. 21.⚖️ 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) whether it floats (c) the shape of the clay (d) the tub of water
22. 22.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
23. 23.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
24. 24.🛟 Does a feather float or sink in water? (a) floats (b) sinks
25. 25.True or false: a piece of thermocol sinks in water. (a) False (b) True
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
27. 27.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) a little shaking (d) lots of salt stirred in
28. 28.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
29. 29.🛟 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
30. 30.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) both of them (d) the small pebble
31. 31.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
32. 32.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
33. 33.⚖️ 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 tub of water (c) the shape of the clay (d) the amount of clay
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a towel for spills (d) a magnet
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a balloon (d) a towel for spills
36. 36.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) a ball of clay (d) a ping-pong ball
38. 38.⚖️ 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
39. 39.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
40. 40.True or false: a tub of water 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