Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 979 · 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 yeast for the float-or-sink test? (a) needed (b) not needed
2. 2.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it turns blue (d) it melts
3. 3.⚖️ 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 change it (b) we measure it (c) we keep it the same
4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
5. 5.🔍 Which is the odd one out? (a) a steel spoon (b) an ice cube (c) a cork (d) a feather
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a ping-pong ball (d) a feather
8. 8.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) the big log (d) both of them
9. 9.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it floats (d) it bounces up
10. 10.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a tub of water (d) small test objects
12. 12.🧺 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) a tub of water (d) a balloon
13. 13.🛟 Which of these floats on water? (a) a glass marble (b) a coin (c) a pebble (d) an ice cube
14. 14.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
15. 15.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
16. 16.⚖️ 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 kind of clay (d) the tub of water
17. 17.⚖️ 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
18. 18.🧺 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
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) the tub of water (c) whether it floats
20. 20.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the cork itself (d) the air above
21. 21.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) a towel for spills (d) a tub of water
22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) a results table (d) small test objects
23. 23.⚖️ 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
24. 24.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the shape of the clay (c) the amount of clay (d) the tub of water
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ping-pong ball (c) a glass marble (d) a feather
28. 28.True or false: a dry leaf sinks in water. (a) False (b) True
29. 29.🛟 Which of these floats on water? (a) a metal key (b) a cork (c) a glass marble (d) a coin
30. 30.🔍 Which is the odd one out? (a) an iron nail (b) a ball of clay (c) an ice-cream stick (d) a metal key
31. 31.⚖️ 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 amount of clay
32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) turmeric powder (d) small test objects
33. 33.🛟 Which of these floats on water? (a) an ice-cream stick (b) a coin (c) a pebble (d) a steel spoon
34. 34.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
35. 35.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
36. 36.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
37. 37.True or false: a glass marble sinks in water. (a) True (b) False
38. 38.True or false: an empty capped bottle sinks in water. (a) False (b) True
39. 39.🛟 Which of these floats on water? (a) a ping-pong ball (b) a glass marble (c) a metal key (d) a pebble
40. 40.⚖️ 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) True (b) False

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