Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 917 · 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.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
2. 2.🔍 Which is the odd one out? (a) an iron nail (b) a pebble (c) a ping-pong ball (d) a steel spoon
3. 3.🛟 Which of these sinks in water? (a) a cork (b) a feather (c) an ice cube (d) a ball of clay
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 keep it the same (b) we change it (c) we measure it
5. 5.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
7. 7.🔍 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
8. 8.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) the small pebble (d) neither of them
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
10. 10.⚖️ 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 kind of clay (b) the tub of water (c) the amount of clay (d) the shape of the clay
11. 11.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
14. 14.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
15. 15.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it dissolves (d) it sinks faster
16. 16.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it sinks (d) it dissolves
17. 17.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
18. 18.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
19. 19.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
20. 20.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
21. 21.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
22. 22.True or false: a coin floats on water. (a) False (b) True
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) a magnet (d) a balloon
24. 24.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
25. 25.True or false: a ball of clay floats on water. (a) True (b) False
26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) an empty capped bottle (d) a glass marble
28. 28.True or false: a cork floats on water. (a) True (b) False
29. 29.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
30. 30.⚖️ 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) True (b) False
31. 31.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a cork (d) a metal key
32. 32.⚖️ 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
33. 33.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
34. 34.🧺 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) a results table (d) a magnet
35. 35.⚖️ 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
36. 36.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) a results table (d) a towel for spills
38. 38.⚖️ 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) False (b) True
39. 39.True or false: a metal key floats on water. (a) False (b) True
40. 40.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) a little shaking (d) more plain water

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