Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 120 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
2. 2.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a results table (c) a battery cell (d) yeast
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a tub of water (d) a balloon
5. 5.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
6. 6.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) water is sticky (d) ice is magnetic
7. 7.🛟 Which of these sinks in water? (a) a feather (b) a dry leaf (c) a cork (d) a ball of clay
8. 8.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
9. 9.🔍 Which is the odd one out? (a) an ice-cream stick (b) an empty capped bottle (c) a dry leaf (d) a coin
10. 10.⚖️ 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) the amount of clay (c) whether it floats
11. 11.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
12. 12.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) yeast (d) a tub of water
14. 14.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a cork (b) a steel spoon (c) a feather (d) a dry leaf
16. 16.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
17. 17.⚖️ 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 keep it the same (b) we measure it (c) we change it
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
20. 20.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a magnet (d) a battery cell
22. 22.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
23. 23.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
24. 24.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) an ice cube (d) an empty capped bottle
25. 25.True or false: a dry leaf sinks in water. (a) True (b) False
26. 26.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
27. 27.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) sea water is warm (d) it has a magnet
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a mirror (c) small test objects (d) a results table
29. 29.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
30. 30.⚖️ 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 change it (b) we keep it the same (c) we measure it
31. 31.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the kind of clay
33. 33.True or false: an ice cube sinks in water. (a) False (b) True
34. 34.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
35. 35.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
36. 36.True or false: a ping-pong ball floats on water. (a) False (b) True
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) a balloon
38. 38.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a cork (c) a ping-pong ball (d) a pebble
39. 39.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
40. 40.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up

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