Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 774 · 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) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a towel for spills (d) a magnet
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a tub of water (d) a mirror
4. 4.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) an ice cube (d) a steel spoon
5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) a towel for spills (d) a tub of water
7. 7.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
8. 8.🛟 Which of these floats on water? (a) a piece of thermocol (b) a glass marble (c) a metal key (d) a pebble
9. 9.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
10. 10.🛟 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 win a prize (d) to keep children safe
11. 11.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
12. 12.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
13. 13.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice-cream stick (c) a dry leaf (d) a ball of clay
14. 14.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a mirror (d) a tub of water
16. 16.⚖️ 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) the kind of clay (d) whether it floats
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the amount of clay (c) the shape of the clay
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) turmeric powder
19. 19.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
20. 20.⚖️ 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 amount of clay (b) the shape of the clay (c) the tub of water (d) whether it floats
21. 21.🔍 Which is the odd one out? (a) an ice-cream stick (b) a coin (c) a ping-pong ball (d) a cork
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) a battery cell (d) a results table
23. 23.🔮 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
24. 24.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
25. 25.🛟 Which of these floats on water? (a) a pebble (b) a dry leaf (c) a ball of clay (d) a metal key
26. 26.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
27. 27.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) yeast
29. 29.⚖️ 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 change it (b) we keep it the same (c) we measure it
30. 30.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice-cream stick (c) a pebble (d) a feather
31. 31.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a tub of water (d) a towel for spills
33. 33.True or false: a piece of thermocol sinks in water. (a) False (b) True
34. 34.🛟 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
35. 35.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
36. 36.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
37. 37.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a cork (c) an iron nail (d) an ice cube
38. 38.True or false: an iron nail sinks in water. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) an iron nail (d) a cork
40. 40.⚖️ 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

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