Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 931 · 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 of these floats on water? (a) a pebble (b) a dry leaf (c) a coin (d) a steel spoon
2. 2.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
3. 3.⚖️ 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) True (b) False
4. 4.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) an iron nail (b) an ice cube (c) a coin (d) a glass marble
6. 6.🔍 Which is the odd one out? (a) a steel spoon (b) a ball of clay (c) a ping-pong ball (d) a glass marble
7. 7.🧺 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 tub of water (d) small test objects
8. 8.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) sea water is warm (d) its hollow shape
9. 9.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it bounces up (d) it floats
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a results table (c) a tub of water (d) small test objects
11. 11.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
12. 12.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a cork (c) an iron nail (d) an ice-cream stick
13. 13.⚖️ 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 keep it the same (b) we change it (c) we measure it
14. 14.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the amount of clay
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) a mirror (d) a magnet
17. 17.⚖️ 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) the tub of water (c) whether it floats
18. 18.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) an ice-cream stick (d) a metal key
20. 20.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) a balloon
22. 22.🛟 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
23. 23.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
24. 24.⚖️ 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 change it (c) we measure it
25. 25.True or false: a ping-pong ball floats on water. (a) True (b) False
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a tub of water (d) a mirror
27. 27.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
28. 28.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
29. 29.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
30. 30.True or false: an iron nail sinks in water. (a) True (b) False
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
34. 34.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a towel for spills (d) a mirror
36. 36.🔮 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
37. 37.🛟 Which of these sinks in water? (a) a metal key (b) a ping-pong ball (c) a feather (d) an ice cube
38. 38.⚖️ 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 tub of water (c) the shape of the clay (d) the amount of clay
39. 39.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
40. 40.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False

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