Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 582 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) turmeric powder (d) a results table
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a magnet (d) a tub of water
3. 3.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) more plain water (d) a few ice cubes
4. 4.🔍 Which is the odd one out? (a) a ball of clay (b) a cork (c) a pebble (d) a coin
5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the tub of water (d) the amount of clay
6. 6.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
7. 7.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
8. 8.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it turns to stone (d) it can float
9. 9.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
10. 10.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
11. 11.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the kind of clay (c) whether it floats
13. 13.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
14. 14.🧺 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) small test objects (d) a results table
15. 15.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
16. 16.True or false: a pebble sinks in water. (a) False (b) True
17. 17.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
18. 18.True or false: a coin floats on water. (a) False (b) True
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) yeast (d) a magnet
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a results table (d) a battery cell
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) a magnet (d) a results table
22. 22.⚖️ 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 measure it (b) we change it (c) we keep it the same
23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to splash everyone (d) to win a prize
24. 24.True or false: an empty capped bottle floats on water. (a) True (b) False
25. 25.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
26. 26.⚖️ 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) False (b) True
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a battery cell (c) small test objects (d) a towel for spills
28. 28.⚖️ 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 keep it the same (b) we measure it (c) we change it
29. 29.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
30. 30.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
31. 31.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a tub of water (d) a results table
33. 33.⚖️ 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
34. 34.⚖️ 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) False (b) True
35. 35.🛟 Which of these sinks in water? (a) a cork (b) a coin (c) an empty capped bottle (d) a dry leaf
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the kind of clay
37. 37.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
38. 38.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) an ice cube (d) a coin
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.True or false: an ice-cream stick sinks in water. (a) True (b) False

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