Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 290 · 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.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
2. 2.True or false: an ice cube sinks in water. (a) True (b) False
3. 3.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) a piece of thermocol (d) a coin
4. 4.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
5. 5.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
6. 6.🔍 Which is the odd one out? (a) an ice-cream stick (b) a piece of thermocol (c) a cork (d) a pebble
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we measure it (b) we keep it the same (c) we change it
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
10. 10.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a results table (d) a balloon
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) yeast (c) a results table (d) a tub of water
13. 13.🛟 Does a cork float or sink in water? (a) sinks (b) floats
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 turns to stone (d) it sinks faster
15. 15.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
16. 16.⚖️ 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 kind of clay (c) the shape of the clay (d) the amount of clay
17. 17.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
18. 18.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) its hollow shape (d) steel is very light
19. 19.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
20. 20.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
21. 21.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a ping-pong ball (d) a metal key
22. 22.⚖️ 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
23. 23.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) play near a deep pond (d) leave water on the floor
24. 24.🛟 Which of these floats on water? (a) a coin (b) a dry leaf (c) a ball of clay (d) a steel spoon
25. 25.⚖️ 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 keep it the same (c) we measure it
26. 26.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a steel spoon (c) a cork (d) a dry leaf
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a magnet (d) a battery cell
28. 28.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
29. 29.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a tub of water (d) turmeric powder
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
32. 32.⚖️ 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
33. 33.True or false: an empty capped bottle floats on water. (a) False (b) True
34. 34.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice-cream stick (c) a cork (d) a ball of clay
35. 35.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
36. 36.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
37. 37.🔍 Which is the odd one out? (a) an ice cube (b) a piece of thermocol (c) a cork (d) a metal key
38. 38.⚖️ 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
39. 39.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) whether it floats (c) the shape of the clay (d) the tub of water

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