Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 957 · 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.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
2. 2.🛟 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 keep children safe (d) to hide the corks
3. 3.⚖️ 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
4. 4.⚖️ 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
5. 5.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above
6. 6.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) the amount of clay (d) whether it floats
8. 8.🔍 Which is the odd one out? (a) a ball of clay (b) a dry leaf (c) a glass marble (d) an iron nail
9. 9.True or false: a coin floats on water. (a) True (b) False
10. 10.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True
11. 11.🛟 Which of these floats on water? (a) a coin (b) a metal key (c) an iron nail (d) a feather
12. 12.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
13. 13.True or false: a coin sinks in water. (a) True (b) False
14. 14.🛟 Does a cork float or sink in water? (a) sinks (b) floats
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) turmeric powder (d) a tub of water
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
17. 17.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) small test objects (c) turmeric powder (d) a balloon
18. 18.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it turns to stone (d) it sinks faster
19. 19.⚖️ 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) whether it floats (c) the amount of clay
20. 20.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
23. 23.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
24. 24.True or false: an empty capped bottle floats on water. (a) True (b) False
25. 25.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice-cream stick (c) a ping-pong ball (d) a steel spoon
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) a tub of water (d) a towel for spills
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a mirror (d) small test objects
28. 28.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) an ice-cream stick (d) a pebble
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) yeast
30. 30.🧺 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 balloon
31. 31.⚖️ 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) whether it floats (c) the tub of water
32. 32.⚖️ 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 measure it (c) we keep it the same
33. 33.🔮 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
34. 34.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
35. 35.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice-cream stick (c) an iron nail (d) an empty capped bottle
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a towel for spills (c) a results table (d) a tub of water
37. 37.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
38. 38.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
39. 39.🛟 Which of these floats on water? (a) a cork (b) an iron nail (c) a coin (d) a glass marble
40. 40.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True

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