Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 147 · 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 safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
2. 2.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
4. 4.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
5. 5.True or false: a cork sinks in water. (a) True (b) False
6. 6.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
7. 7.⚖️ 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 change it (c) we keep it the same
8. 8.🛟 Which of these floats on water? (a) a piece of thermocol (b) an iron nail (c) a metal key (d) a coin
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
10. 10.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
11. 11.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) lots of salt stirred in (d) more plain water
12. 12.🔮 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
13. 13.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) a coin (d) a glass marble
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a mirror (d) small test objects
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) True (b) False
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) small test objects (d) a results table
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) turmeric powder (d) a tub of water
18. 18.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
19. 19.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
20. 20.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
21. 21.🔮 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
22. 22.True or false: a cork floats on water. (a) False (b) True
23. 23.🔍 Which is the odd one out? (a) an iron nail (b) a pebble (c) a steel spoon (d) a feather
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a balloon (d) a battery cell
25. 25.🛟 Which of these sinks in water? (a) a cork (b) a pebble (c) an ice-cream stick (d) a feather
26. 26.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
27. 27.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) an ice-cream stick (d) a steel spoon
28. 28.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a results table (d) a towel for spills
30. 30.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a results table (d) a tub of water
32. 32.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
33. 33.⚖️ 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) True (b) False
34. 34.True or false: an iron nail sinks in water. (a) False (b) True
35. 35.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
36. 36.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
37. 37.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
38. 38.⚖️ 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 shape of the clay (b) the tub of water (c) the kind of clay (d) the amount of clay
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
40. 40.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a steel spoon (d) a glass marble

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