Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 435 · 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.⚖️ 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 measure it (c) we keep it the same
2. 2.⚖️ 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) False (b) True
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) small test objects (d) a towel for spills
4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
5. 5.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
7. 7.🛟 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
8. 8.⚖️ 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 measure it (b) we change it (c) we keep it the same
9. 9.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
10. 10.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
11. 11.⚖️ 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 change it (b) we measure it (c) we keep it the same
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 results table (d) a towel for spills
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a mirror (c) a tub of water (d) a towel for spills
14. 14.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
15. 15.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) an iron nail (d) a coin
16. 16.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) turmeric powder (c) yeast (d) a tub of water
18. 18.🛟 Does a coin float or sink in water? (a) sinks (b) floats
19. 19.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
20. 20.⚖️ 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) True (b) False
21. 21.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
22. 22.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it melts (d) it floats higher
23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) small test objects (d) a tub of water
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
25. 25.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) yeast
26. 26.⚖️ 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) False (b) True
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
28. 28.⚖️ 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
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
31. 31.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
32. 32.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
33. 33.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
34. 34.⚖️ 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
35. 35.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a results table (d) a tub of water
37. 37.🛟 Which of these floats on water? (a) a glass marble (b) a pebble (c) an empty capped bottle (d) a coin
38. 38.⚖️ 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 kind of clay (b) the amount of clay (c) the shape of the clay (d) whether it floats
39. 39.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a ball of clay (d) a feather
40. 40.🔍 Which is the odd one out? (a) an ice-cream stick (b) an empty capped bottle (c) a coin (d) an ice cube

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