Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 260 · 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 is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a balloon (d) a magnet
2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
3. 3.True or false: an ice cube sinks in water. (a) False (b) True
4. 4.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
5. 5.🧺 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 mirror
6. 6.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) a glass marble (d) a steel spoon
7. 7.🛟 Which of these floats on water? (a) a coin (b) a ball of clay (c) a glass marble (d) an ice cube
8. 8.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) small test objects (d) a mirror
9. 9.🛟 Which of these sinks in water? (a) an ice cube (b) an empty capped bottle (c) a dry leaf (d) a steel spoon
10. 10.🛟 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 splash everyone (d) to win a prize
11. 11.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
12. 12.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
13. 13.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
14. 14.🔮 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
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) small test objects (d) a tub of water
16. 16.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
17. 17.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
18. 18.🧺 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 magnet
19. 19.🔍 Which is the odd one out? (a) an iron nail (b) a coin (c) a metal key (d) a cork
20. 20.⚖️ 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) whether it floats (d) the amount of clay
21. 21.🔍 Which is the odd one out? (a) a metal key (b) an empty capped bottle (c) a pebble (d) a coin
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
23. 23.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
24. 24.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a piece of thermocol (c) an ice-cream stick (d) a glass marble
25. 25.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
26. 26.🚢 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
27. 27.🧺 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) a balloon (d) small test objects
28. 28.⚖️ 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
29. 29.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a results table (d) yeast
31. 31.⚖️ 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) True (b) False
32. 32.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
33. 33.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the air above (d) the tub
34. 34.⚖️ 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
35. 35.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it floats higher (d) it turns blue
36. 36.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a mirror (d) a tub of water
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) a towel for spills (d) a balloon
40. 40.🔍 Which is the odd one out? (a) a metal key (b) a piece of thermocol (c) an iron nail (d) a ball of clay

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