Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 839 · 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 odd one out? (a) an ice cube (b) a glass marble (c) an ice-cream stick (d) a piece of thermocol
2. 2.True or false: a dry leaf sinks in water. (a) True (b) False
3. 3.⚖️ 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 tub of water (b) the shape of the clay (c) the amount of clay (d) whether it floats
4. 4.⚖️ 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 tub of water (c) the shape of the clay
5. 5.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) an ice-cream stick (d) a glass marble
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a results table (d) a battery cell
7. 7.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
8. 8.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
9. 9.⚖️ 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
10. 10.🥚 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
11. 11.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) turmeric powder (d) small test objects
13. 13.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it sinks faster (d) it turns to stone
15. 15.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
16. 16.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
17. 17.⚖️ 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 measure it (c) we keep it the same
18. 18.⚖️ 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
19. 19.🛟 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) run around the tub (d) leave water on the floor
20. 20.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
21. 21.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
22. 22.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
23. 23.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
24. 24.🔍 Which is the odd one out? (a) a piece of thermocol (b) a metal key (c) an ice cube (d) an empty capped bottle
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a magnet (d) a results table
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) small test objects (d) a results table
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) a magnet
28. 28.🧺 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) small test objects (d) a balloon
29. 29.⚖️ 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
30. 30.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
31. 31.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
32. 32.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a dry leaf (d) a coin
33. 33.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
34. 34.🔮 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
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) turmeric powder
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) a mirror (d) a magnet
37. 37.True or false: a feather floats on water. (a) False (b) True
38. 38.True or false: an ice cube floats on water. (a) False (b) True
39. 39.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a coin (b) a cork (c) a metal key (d) a steel spoon

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