Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 962 · 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.🧺 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) turmeric powder (d) small test objects
2. 2.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) steel is very light (d) sea water is warm
3. 3.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
4. 4.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a dry leaf (d) a metal key
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
6. 6.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a steel spoon (d) an ice-cream stick
7. 7.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a battery cell (d) a magnet
9. 9.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the air above (d) the tub
10. 10.True or false: a pebble floats on water. (a) False (b) True
11. 11.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it turns white (d) it still floats
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) a towel for spills (d) small test objects
13. 13.⚖️ 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
14. 14.⚖️ 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 shape of the clay (b) whether it floats (c) the kind of clay (d) the amount of clay
15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the tub of water (c) the kind of clay (d) whether it floats
16. 16.True or false: an empty capped bottle floats on water. (a) True (b) False
17. 17.True or false: an iron nail sinks in water. (a) False (b) True
18. 18.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it sinks (d) it dissolves
19. 19.🔍 Which is the odd one out? (a) a cork (b) a metal key (c) an ice-cream stick (d) a ping-pong ball
20. 20.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a tub of water (d) a towel for spills
22. 22.⚖️ 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
23. 23.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
24. 24.True or false: a dry leaf floats on water. (a) True (b) False
25. 25.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) a mirror (d) a battery cell
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.⚖️ 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 measure it (b) we keep it the same (c) we change it
29. 29.True or false: a ping-pong ball floats on water. (a) True (b) False
30. 30.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
31. 31.True or false: a metal key floats on water. (a) False (b) True
32. 32.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
33. 33.🔍 Which is the odd one out? (a) a feather (b) a ping-pong ball (c) a pebble (d) an empty capped bottle
34. 34.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it turns blue (d) it floats higher
35. 35.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) a ball of clay (d) a cork
36. 36.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) a towel for spills (d) a tub of water
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a mirror (d) small test objects

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