Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 75 · 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.🔍 Which is the odd one out? (a) an iron nail (b) a glass marble (c) a coin (d) an ice cube
2. 2.True or false: a steel spoon sinks in water. (a) False (b) True
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
4. 4.⚖️ 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
5. 5.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
6. 6.True or false: a ping-pong ball floats on water. (a) True (b) False
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) small test objects (d) a results table
8. 8.⚖️ 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
9. 9.🛟 Does a coin float or sink in water? (a) sinks (b) floats
10. 10.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
11. 11.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
12. 12.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
13. 13.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) a pebble (d) a feather
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a mirror
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
16. 16.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
17. 17.⚖️ 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) True (b) False
18. 18.🛟 Which of these floats on water? (a) a cork (b) a pebble (c) a coin (d) a metal key
19. 19.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
20. 20.⚖️ 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) the amount of clay (c) the shape of the clay (d) the kind of clay
21. 21.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
22. 22.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a cork (c) a steel spoon (d) an ice cube
23. 23.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a feather (c) a glass marble (d) an empty capped bottle
24. 24.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
25. 25.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) an empty capped bottle (d) a pebble
26. 26.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
27. 27.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the big log (c) the small pebble (d) both of them
28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) yeast (d) turmeric powder
29. 29.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
30. 30.🔍 Which is the odd one out? (a) a piece of thermocol (b) a glass marble (c) a steel spoon (d) an iron nail
31. 31.🛟 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
32. 32.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the cork itself (d) the water
33. 33.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
34. 34.⚖️ 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) whether it floats (c) the shape of the clay
35. 35.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
36. 36.⚖️ 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) True (b) False
37. 37.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
38. 38.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
39. 39.🔮 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
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True

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