Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 648 · 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.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
2. 2.🛟 Which of these floats on water? (a) a coin (b) a pebble (c) a ball of clay (d) an ice-cream stick
3. 3.True or false: a coin sinks in water. (a) True (b) False
4. 4.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an iron nail (c) an empty capped bottle (d) an ice cube
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a mirror (d) a towel for spills
6. 6.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an ice cube (c) a piece of thermocol (d) a coin
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a balloon (d) small test objects
8. 8.🛟 Does a feather float or sink in water? (a) floats (b) sinks
9. 9.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
10. 10.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
11. 11.⚖️ 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
12. 12.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) a dry leaf (d) an ice cube
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a towel for spills (d) a tub of water
14. 14.🛟 Which of these floats on water? (a) a coin (b) a piece of thermocol (c) a ball of clay (d) a steel spoon
15. 15.True or false: a cork sinks in water. (a) False (b) True
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) the shape of the clay (d) whether it floats
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a mirror (c) turmeric powder (d) a tub of water
19. 19.⚖️ 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) whether it floats (c) the amount of clay
20. 20.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it turns to stone (c) it sinks faster (d) it can float
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) a towel for spills (d) yeast
22. 22.⚖️ 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
23. 23.True or false: an iron nail sinks in water. (a) True (b) False
24. 24.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) both of them (d) the small pebble
25. 25.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) leave water on the floor (d) run around the tub
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a tub of water (d) a results table
28. 28.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
29. 29.🛟 Which of these floats on water? (a) a pebble (b) a feather (c) a ball of clay (d) a steel spoon
30. 30.🔍 Which is the odd one out? (a) a ping-pong ball (b) a steel spoon (c) a piece of thermocol (d) an ice cube
31. 31.🛟 Does a cork float or sink in water? (a) floats (b) sinks
32. 32.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
33. 33.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
34. 34.⚖️ 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 shape of the clay (c) the kind of clay
35. 35.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
36. 36.🛟 Which of these floats on water? (a) a dry leaf (b) a pebble (c) a steel spoon (d) a ball of clay
37. 37.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe
38. 38.True or false: a pebble floats on water. (a) True (b) False
39. 39.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it floats (d) it sinks
40. 40.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) a ball of clay (d) a dry leaf

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