Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 895 · 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 sinks in water? (a) a cork (b) a coin (c) an ice-cream stick (d) a dry leaf
2. 2.True or false: a steel spoon floats on water. (a) True (b) False
3. 3.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
4. 4.⚖️ 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) False (b) True
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
6. 6.True or false: an empty capped bottle floats on water. (a) True (b) False
7. 7.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
8. 8.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
9. 9.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
10. 10.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a magnet (d) a results table
12. 12.⚖️ 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 amount of clay (d) whether it floats
13. 13.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
14. 14.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a glass marble (d) an empty capped bottle
15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
16. 16.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
17. 17.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
18. 18.🛟 Which of these sinks in water? (a) a pebble (b) an empty capped bottle (c) a piece of thermocol (d) an ice-cream stick
19. 19.🛟 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
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) a balloon (d) a tub of water
21. 21.⚖️ 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) whether it floats (c) the shape of the clay (d) the amount of clay
22. 22.True or false: a metal key floats on water. (a) True (b) False
23. 23.🧺 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) yeast (d) a tub of water
24. 24.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
25. 25.🧺 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) a results table (d) a magnet
26. 26.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet
27. 27.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) a coin (d) a glass marble
29. 29.⚖️ 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) False (b) True
30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a mirror (c) a towel for spills (d) a balloon
31. 31.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
32. 32.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
33. 33.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) a results table (d) small test objects
35. 35.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
36. 36.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) an ice-cream stick (d) a metal key
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.⚖️ 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 keep it the same (b) we measure it (c) we change it
39. 39.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
40. 40.True or false: an iron nail sinks in water. (a) True (b) False

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