Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 195 · 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 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
2. 2.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.⚖️ 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) the kind of clay (c) whether it floats (d) the tub of water
5. 5.🛟 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 keep children safe (d) to hide the corks
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a battery cell (d) a tub of water
7. 7.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
8. 8.⚖️ 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 shape of the clay (c) the tub of water
9. 9.True or false: an empty capped bottle sinks in water. (a) False (b) True
10. 10.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
11. 11.🛟 Which of these floats on water? (a) a glass marble (b) a ping-pong ball (c) a coin (d) a metal key
12. 12.🛟 Does a coin float or sink in water? (a) sinks (b) floats
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
16. 16.⚖️ 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
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) turmeric powder (d) small test objects
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) turmeric powder
19. 19.🧺 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) yeast (d) small test objects
20. 20.⚖️ 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
21. 21.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
22. 22.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
23. 23.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
24. 24.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) small test objects (d) a battery cell
26. 26.🧺 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) small test objects (d) a balloon
27. 27.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
30. 30.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
31. 31.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
32. 32.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is magnetic (d) ice is very cold
33. 33.🛟 Which of these floats on water? (a) a ball of clay (b) a metal key (c) a coin (d) an empty capped bottle
34. 34.True or false: a glass marble sinks in water. (a) False (b) True
35. 35.⚖️ 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 shape of the clay (c) the kind of clay (d) whether it floats
36. 36.True or false: a ball of clay floats on water. (a) False (b) True
37. 37.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
38. 38.🔮 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 sinks faster (d) it turns to stone
39. 39.True or false: a dry leaf floats on water. (a) True (b) False
40. 40.🧺 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) turmeric powder (d) a towel for spills

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