Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 916 · 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: an ice-cream stick sinks in water. (a) True (b) False
2. 2.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
3. 3.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) it has a magnet (d) steel is very light
4. 4.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
6. 6.⚖️ 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) 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) whether it floats (b) the kind of clay (c) the amount of clay (d) the shape of the clay
8. 8.🔍 Which is the odd one out? (a) a ping-pong ball (b) an empty capped bottle (c) an ice-cream stick (d) an iron nail
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
10. 10.🔮 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
11. 11.True or false: a metal key sinks in water. (a) False (b) True
12. 12.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
13. 13.🛟 Which of these floats on water? (a) a ball of clay (b) a feather (c) a glass marble (d) a metal key
14. 14.⚖️ 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 change it (c) we measure it
15. 15.⚖️ 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 keep it the same (b) we measure it (c) we change it
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) a mirror
17. 17.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) more plain water (d) lots of salt stirred in
18. 18.⚖️ 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
19. 19.True or false: a metal key floats on water. (a) True (b) False
20. 20.True or false: a pebble sinks in water. (a) False (b) True
21. 21.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
22. 22.🛟 Which of these sinks in water? (a) a feather (b) a ball of clay (c) an ice cube (d) an ice-cream stick
23. 23.🔍 Which is the odd one out? (a) a cork (b) a feather (c) a pebble (d) a piece of thermocol
24. 24.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a steel spoon (c) a ping-pong ball (d) a cork
25. 25.True or false: a cork sinks in water. (a) True (b) False
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a tub of water (d) a towel for spills
27. 27.🔍 Which is the odd one out? (a) an iron nail (b) a cork (c) a glass marble (d) a steel spoon
28. 28.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
30. 30.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
31. 31.🔍 Which is the odd one out? (a) a metal key (b) a ball of clay (c) a dry leaf (d) a coin
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a tub of water (d) a results table
33. 33.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
34. 34.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a results table (c) a tub of water (d) a towel for spills
36. 36.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
37. 37.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a balloon (d) a magnet
38. 38.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it dissolves (d) it still floats
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) turmeric powder (d) a tub of water

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