Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 768 · 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.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it dissolves (c) it floats (d) it bounces up
2. 2.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
3. 3.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a balloon (d) a mirror
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) turmeric powder (d) a results table
6. 6.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
7. 7.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
8. 8.🛟 Which of these sinks in water? (a) a ball of clay (b) an ice-cream stick (c) a piece of thermocol (d) a feather
9. 9.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) a mirror
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we measure it (b) we keep it the same (c) we change it
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a towel for spills (d) a results table
13. 13.True or false: a glass marble floats on water. (a) True (b) False
14. 14.🧺 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 tub of water (d) a towel for spills
15. 15.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
16. 16.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
18. 18.⚖️ 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
19. 19.🛟 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 splash everyone (d) to win a prize
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a magnet (c) a mirror (d) a balloon
21. 21.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
22. 22.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a towel for spills (c) a balloon (d) yeast
23. 23.🛟 Which of these sinks in water? (a) a dry leaf (b) an empty capped bottle (c) a coin (d) a piece of thermocol
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it dissolves (d) it sinks
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
26. 26.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
27. 27.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
28. 28.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
29. 29.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
30. 30.⚖️ 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 measure it (c) we change it
31. 31.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is less dense (d) ice is magnetic
32. 32.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) an ice-cream stick (d) a ball of clay
33. 33.True or false: a dry leaf floats on water. (a) False (b) True
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a battery cell (d) a tub of water
35. 35.🔮 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 can float (d) it sinks faster
36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a results table (d) turmeric powder
37. 37.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) both of them (d) the big log
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a tub of water (d) a results table
39. 39.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it sinks (d) it turns blue
40. 40.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed

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