Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 405 · 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 feather sinks in water. (a) True (b) False
2. 2.⚖️ 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 shape of the clay (d) the tub of water
3. 3.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
4. 4.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
5. 5.⚖️ 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
6. 6.⚖️ 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
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
8. 8.🔍 Which is the odd one out? (a) a cork (b) a piece of thermocol (c) an ice cube (d) a pebble
9. 9.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a results table (d) a battery cell
11. 11.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a balloon (d) a towel for spills
13. 13.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
14. 14.🛟 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
15. 15.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
16. 16.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above
17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) yeast (d) a results table
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) a results table (d) small test objects
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a battery cell (d) a magnet
20. 20.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a glass marble (b) an ice-cream stick (c) a metal key (d) a pebble
22. 22.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice cube (c) a cork (d) a glass marble
23. 23.⚖️ 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
24. 24.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a results table (d) a battery cell
26. 26.🛟 Which of these floats on water? (a) a pebble (b) a feather (c) a steel spoon (d) a glass marble
27. 27.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) a towel for spills (d) yeast
29. 29.⚖️ 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
30. 30.True or false: a piece of thermocol sinks in water. (a) True (b) False
31. 31.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
33. 33.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) a metal key (d) a feather
34. 34.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
35. 35.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
36. 36.🛟 Which of these sinks in water? (a) an ice cube (b) a ball of clay (c) a dry leaf (d) an empty capped bottle
37. 37.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
38. 38.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
39. 39.🛟 Which of these sinks in water? (a) a metal key (b) a cork (c) a piece of thermocol (d) an empty capped bottle
40. 40.⚖️ 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

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