Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 406 · 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 dry leaf float or sink in water? (a) floats (b) sinks
2. 2.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
3. 3.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
5. 5.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to win a prize (d) to hide the corks
6. 6.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a magnet (d) small test objects
8. 8.⚖️ 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 keep it the same (b) we measure it (c) we change it
9. 9.⚖️ 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
10. 10.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
11. 11.True or false: an iron nail floats on water. (a) True (b) False
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
13. 13.⚖️ 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
14. 14.True or false: a ping-pong ball floats on water. (a) False (b) True
15. 15.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
16. 16.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
18. 18.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
19. 19.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
20. 20.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) a cork (d) a glass marble
22. 22.🧺 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 towel for spills
23. 23.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) a metal key (d) an ice cube
24. 24.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) an empty capped bottle (d) an iron nail
25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
26. 26.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
27. 27.⚖️ 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 shape of the clay (b) whether it floats (c) the amount of clay (d) the tub of water
28. 28.True or false: a glass marble sinks in water. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) an iron nail (b) a cork (c) a piece of thermocol (d) a dry leaf
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a magnet (d) a balloon
31. 31.🧺 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 battery cell (d) small test objects
32. 32.⚖️ 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 change it (c) we keep it the same
33. 33.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
34. 34.🛟 Which of these floats on water? (a) a dry leaf (b) a pebble (c) a ball of clay (d) a glass marble
35. 35.True or false: an ice-cream stick floats on water. (a) True (b) False
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a magnet (d) a towel for spills
37. 37.🔍 Which is the odd one out? (a) a feather (b) a glass marble (c) a pebble (d) a ball of clay
38. 38.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
39. 39.⚖️ 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
40. 40.⚖️ 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

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