Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 620 · 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.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
2. 2.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it floats (d) it bounces up
4. 4.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
5. 5.⚖️ 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 tub of water (d) the shape of the clay
6. 6.True or false: a ball of clay sinks in water. (a) True (b) False
7. 7.⚖️ 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) whether it floats (c) the amount of clay (d) the shape of the clay
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a towel for spills (d) small test objects
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we measure it (c) we keep it the same
10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
11. 11.🛟 Which of these floats on water? (a) a ping-pong ball (b) a glass marble (c) a coin (d) a ball of clay
12. 12.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
14. 14.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) a cork (d) an iron nail
15. 15.⚖️ 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) True (b) False
16. 16.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
17. 17.🔍 Which is the odd one out? (a) a ball of clay (b) a dry leaf (c) a metal key (d) a coin
18. 18.🔍 Which is the odd one out? (a) an ice cube (b) an ice-cream stick (c) a pebble (d) a feather
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a tub of water (d) a magnet
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a tub of water (d) a towel for spills
21. 21.True or false: a ball of clay floats on water. (a) True (b) False
22. 22.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
23. 23.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) both of them (d) neither of them
24. 24.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a balloon (d) turmeric powder
26. 26.🔮 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 can float (d) it turns to stone
27. 27.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
28. 28.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
29. 29.True or false: a cork floats on water. (a) False (b) True
30. 30.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
32. 32.⚖️ 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
33. 33.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.⚖️ 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 tub of water
36. 36.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
37. 37.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
38. 38.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
39. 39.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
40. 40.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats

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