Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 535 · 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? Which of these is the one thing we change? (a) the amount of clay (b) the tub of water (c) the shape of the clay (d) whether it floats
2. 2.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) a tub of water
4. 4.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a pebble (d) a ping-pong ball
5. 5.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is very cold (d) ice is magnetic
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) yeast
7. 7.🔮 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
8. 8.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a metal key (d) an ice-cream stick
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
10. 10.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) turmeric powder (d) a towel for spills
11. 11.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a results table (c) a tub of water (d) small test objects
13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a mirror (c) a tub of water (d) a results table
14. 14.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a cork (d) a metal key
15. 15.⚖️ 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 keep it the same (b) we measure it (c) we change it
16. 16.🥚 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
17. 17.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it dissolves (d) it bounces up
18. 18.True or false: a coin sinks in water. (a) False (b) True
19. 19.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
20. 20.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
21. 21.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a piece of thermocol (c) a cork (d) an iron nail
22. 22.🔮 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
23. 23.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a glass marble (d) a ping-pong ball
24. 24.🛟 Does a feather float or sink in water? (a) floats (b) sinks
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
28. 28.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
29. 29.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
30. 30.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
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.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
33. 33.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
34. 34.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
35. 35.⚖️ 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
36. 36.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a balloon
38. 38.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
40. 40.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it melts (d) it floats higher

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