Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 736 · 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 big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) both of them (d) the small pebble
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a battery cell (d) turmeric powder
3. 3.🛟 Which of these floats on water? (a) a steel spoon (b) a ball of clay (c) a metal key (d) an ice cube
4. 4.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
5. 5.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
8. 8.⚖️ 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
9. 9.⚖️ 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) True (b) False
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) turmeric powder (d) a tub of water
11. 11.⚖️ 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 shape of the clay (c) the tub of water
12. 12.🔍 Which is the odd one out? (a) a dry leaf (b) a ball of clay (c) a cork (d) an ice-cream stick
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 measure it (b) we keep it the same (c) we change it
14. 14.⚖️ 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
15. 15.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
16. 16.⚖️ 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 tub of water (b) whether it floats (c) the amount of clay (d) the shape of the clay
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) small test objects (d) a results table
18. 18.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it dissolves (d) it bounces up
19. 19.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
20. 20.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) a glass marble (d) an ice-cream stick
21. 21.True or false: a metal key floats on water. (a) True (b) False
22. 22.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
23. 23.🛟 Which of these floats on water? (a) a steel spoon (b) a cork (c) a glass marble (d) a metal key
24. 24.🛟 Which of these floats on water? (a) a glass marble (b) an iron nail (c) a piece of thermocol (d) a metal key
25. 25.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
26. 26.True or false: a pebble floats on water. (a) False (b) True
27. 27.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
28. 28.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
29. 29.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
30. 30.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) turmeric powder (d) a tub of water
33. 33.🔍 Which is the odd one out? (a) a cork (b) an iron nail (c) a steel spoon (d) a metal key
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the amount of clay (d) the tub of water
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) small test objects (d) a tub of water
36. 36.🧺 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
37. 37.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
38. 38.🛟 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
39. 39.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it sinks (d) it floats higher
40. 40.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) an ice cube (d) a coin

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