Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 546 · 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.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
2. 2.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
3. 3.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
4. 4.🛟 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
5. 5.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
6. 6.🔍 Which is the odd one out? (a) a coin (b) a dry leaf (c) a glass marble (d) a ball of clay
7. 7.⚖️ 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 keep it the same (c) we change it
8. 8.True or false: a metal key floats on water. (a) False (b) True
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a balloon (c) small test objects (d) a tub of water
11. 11.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
12. 12.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
13. 13.⚖️ 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 change it (c) we measure it
14. 14.🛟 Does a coin float or sink in water? (a) floats (b) sinks
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) an ice-cream stick (b) a feather (c) a cork (d) a metal key
17. 17.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
18. 18.True or false: a pebble sinks in water. (a) True (b) False
19. 19.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
20. 20.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it turns blue (d) it floats higher
22. 22.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) a balloon (d) turmeric powder
24. 24.🔍 Which is the odd one out? (a) a cork (b) a feather (c) an ice cube (d) an iron nail
25. 25.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a coin (b) a piece of thermocol (c) a steel spoon (d) a pebble
27. 27.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) turmeric powder (d) a tub of water
29. 29.True or false: a coin floats on water. (a) False (b) True
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
31. 31.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
32. 32.True or false: a dry leaf floats on water. (a) False (b) True
33. 33.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) an empty capped bottle (d) a pebble
34. 34.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a battery cell (c) small test objects (d) a balloon
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
37. 37.True or false: a feather floats on water. (a) True (b) False
38. 38.True or false: an ice cube floats on water. (a) False (b) True
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) whether it floats (d) the kind of clay
40. 40.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble

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