Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 411 · 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 of these floats on water? (a) a coin (b) an empty capped bottle (c) a ball of clay (d) a steel spoon
2. 2.🛟 Which of these floats on water? (a) a steel spoon (b) a glass marble (c) an iron nail (d) a feather
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a tub of water (d) a battery cell
4. 4.🛟 Does a coin float or sink in water? (a) floats (b) sinks
5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
6. 6.🛟 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
7. 7.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a balloon (d) a results table
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a battery cell (d) turmeric powder
10. 10.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) water is sticky (d) ice is very cold
11. 11.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) the tub of water (d) whether it floats
13. 13.⚖️ 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) whether it floats (c) the shape of the clay (d) the kind of clay
14. 14.🧺 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
15. 15.⚖️ 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) False (b) True
16. 16.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) a steel spoon (b) a coin (c) a ping-pong ball (d) a ball of clay
18. 18.⚖️ 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
19. 19.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
20. 20.🔍 Which is the odd one out? (a) an ice-cream stick (b) an ice cube (c) a coin (d) a dry leaf
21. 21.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
22. 22.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
23. 23.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a pebble (d) a feather
24. 24.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
25. 25.🔍 Which is the odd one out? (a) a coin (b) an iron nail (c) a cork (d) a glass marble
26. 26.🔍 Which is the odd one out? (a) a pebble (b) a dry leaf (c) a ball of clay (d) a coin
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a towel for spills (d) a battery cell
28. 28.True or false: an iron nail floats on water. (a) True (b) False
29. 29.⚖️ 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) True (b) False
30. 30.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
31. 31.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) an empty capped bottle (d) a steel spoon
32. 32.🛟 Does a feather float or sink in water? (a) sinks (b) floats
33. 33.⚖️ 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
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it dissolves (d) it sinks faster
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) yeast (d) a results table
36. 36.🛟 Which of these sinks in water? (a) a coin (b) a cork (c) a ping-pong ball (d) a piece of thermocol
37. 37.True or false: an ice cube sinks in water. (a) True (b) False
38. 38.🛟 Which of these floats on water? (a) a pebble (b) a glass marble (c) an ice cube (d) a steel spoon
39. 39.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
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 kept the same. (a) True (b) False

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