Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 564 · 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? Which of these is what we measure? (a) whether it floats (b) the amount of clay (c) the tub of water (d) the kind of clay
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.True or false: a ping-pong ball floats on water. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) a ping-pong ball (d) a coin
5. 5.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a towel for spills (d) a results table
7. 7.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it dissolves (d) it sinks
8. 8.🛟 Which of these sinks in water? (a) a steel spoon (b) an empty capped bottle (c) an ice cube (d) a cork
9. 9.True or false: an iron nail floats on water. (a) True (b) False
10. 10.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) water is sticky (d) ice is less dense
11. 11.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
12. 12.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
13. 13.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it sinks (d) it turns blue
14. 14.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
15. 15.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
16. 16.🧺 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) turmeric powder
17. 17.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
19. 19.⚖️ 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) True (b) False
20. 20.🧺 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 battery cell (d) a towel for spills
21. 21.🧺 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) yeast (d) a towel for spills
22. 22.True or false: a steel spoon floats on water. (a) True (b) False
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) turmeric powder (d) a tub of water
24. 24.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
25. 25.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
26. 26.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
27. 27.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
28. 28.⚖️ 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 kind of clay (b) whether it floats (c) the amount of clay (d) the shape of the clay
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
31. 31.True or false: a pebble sinks in water. (a) True (b) False
32. 32.🧺 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 magnet
33. 33.True or false: a feather sinks in water. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) a cork (b) an iron nail (c) a glass marble (d) a coin
35. 35.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a glass marble (d) an empty capped bottle
36. 36.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
37. 37.⚖️ 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
38. 38.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
39. 39.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
40. 40.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True

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