Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 498 · 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) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
2. 2.⚖️ 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
3. 3.⚖️ 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
4. 4.🔍 Which is the odd one out? (a) a cork (b) a coin (c) a ping-pong ball (d) an empty capped bottle
5. 5.🛟 Does a ping-pong ball 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? Which of these is the one thing we change? (a) the shape of the clay (b) the kind of clay (c) the amount of clay (d) the tub of water
7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) small test objects (c) a results table (d) a tub of water
8. 8.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
9. 9.🔍 Which is the odd one out? (a) a ball of clay (b) a feather (c) a cork (d) an ice cube
10. 10.True or false: a piece of thermocol sinks in water. (a) True (b) False
11. 11.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
12. 12.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
13. 13.🔮 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
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) turmeric powder (d) small test objects
15. 15.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
16. 16.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
18. 18.⚖️ 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 change it (b) we measure it (c) we keep it the same
19. 19.🛟 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
20. 20.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) a dry leaf (b) a glass marble (c) a steel spoon (d) a coin
22. 22.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
23. 23.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
24. 24.⚖️ 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 tub of water (d) the kind of clay
25. 25.🛟 Which of these sinks in water? (a) an iron nail (b) an empty capped bottle (c) an ice cube (d) an ice-cream stick
26. 26.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) a dry leaf (d) a steel spoon
27. 27.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
28. 28.⚖️ 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) True (b) False
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a tub of water (d) small test objects
30. 30.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
31. 31.True or false: a cork floats on water. (a) False (b) True
32. 32.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
33. 33.🛟 Which of these sinks in water? (a) a ball of clay (b) an empty capped bottle (c) a feather (d) a dry leaf
34. 34.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
35. 35.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
36. 36.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
38. 38.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a metal key (d) a piece of thermocol
39. 39.True or false: a ball of clay floats on water. (a) True (b) False
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a towel for spills (d) a battery cell

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