Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 63 · 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.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
2. 2.🧺 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
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a mirror (c) a magnet (d) a balloon
4. 4.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a steel spoon (d) a dry leaf
5. 5.🧺 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) yeast (d) a results table
6. 6.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) small test objects (d) a mirror
8. 8.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to splash everyone (d) to keep children safe
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
10. 10.True or false: a ping-pong ball floats on water. (a) True (b) False
11. 11.True or false: a ball of clay sinks in water. (a) False (b) True
12. 12.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
13. 13.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
15. 15.True or false: an ice cube floats on water. (a) False (b) True
16. 16.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
17. 17.🛟 Which of these floats on water? (a) a metal key (b) an ice-cream stick (c) a glass marble (d) a pebble
18. 18.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a pebble (d) a feather
19. 19.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a tub of water (d) a towel for spills
21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.True or false: a dry leaf floats on water. (a) True (b) False
23. 23.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
24. 24.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
25. 25.True or false: a steel spoon sinks in water. (a) True (b) False
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a tub of water (d) yeast
27. 27.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a mirror (c) a towel for spills (d) small test objects
29. 29.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
30. 30.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) a few ice cubes (d) more plain water
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a battery cell (d) a results table
32. 32.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
33. 33.True or false: a piece of thermocol floats on water. (a) True (b) False
34. 34.🛟 Does a feather float or sink in water? (a) floats (b) sinks
35. 35.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
36. 36.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) both of them (d) the small pebble
37. 37.🛟 Which of these sinks in water? (a) a feather (b) a piece of thermocol (c) a pebble (d) an ice-cream stick
38. 38.⚖️ 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 shape of the clay (c) the tub of water (d) the kind of clay
39. 39.🔮 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
40. 40.True or false: an ice-cream stick sinks in water. (a) False (b) True

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