Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 219 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a results table (c) a tub of water (d) a towel for spills
2. 2.🔍 Which is the odd one out? (a) a ping-pong ball (b) an empty capped bottle (c) a steel spoon (d) a feather
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
4. 4.🔍 Which is the odd one out? (a) a cork (b) a dry leaf (c) an empty capped bottle (d) an iron nail
5. 5.🔍 Which is the odd one out? (a) a feather (b) a ball of clay (c) a piece of thermocol (d) an ice-cream stick
6. 6.🧺 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 results table (d) a balloon
7. 7.🔍 Which is the odd one out? (a) a piece of thermocol (b) an ice cube (c) a feather (d) a metal key
8. 8.True or false: a dry leaf floats on water. (a) False (b) True
9. 9.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
10. 10.True or false: an ice cube floats on water. (a) True (b) False
11. 11.⚖️ 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 kind of clay (c) whether it floats (d) the shape of the clay
12. 12.⚖️ 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) whether it floats (c) the amount of clay
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a mirror (d) a results table
14. 14.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) an iron nail (d) a pebble
15. 15.🔍 Which is the odd one out? (a) a ball of clay (b) an empty capped bottle (c) an iron nail (d) a metal key
16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) small test objects (d) a tub of water
18. 18.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it sinks (d) it bounces up
19. 19.⚖️ 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
20. 20.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it sinks faster (d) it turns to stone
21. 21.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a few ice cubes (d) a little shaking
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 towel for spills (c) a mirror (d) a results table
23. 23.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
24. 24.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) small test objects (c) a mirror (d) a balloon
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a mirror (d) a tub of water
27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a magnet
28. 28.⚖️ 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) True (b) False
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a results table (d) a balloon
30. 30.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
31. 31.🔮 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
32. 32.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
33. 33.⚖️ 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 measure it (b) we change it (c) we keep it the same
34. 34.🛟 Which of these floats on water? (a) a metal key (b) an iron nail (c) a feather (d) a pebble
35. 35.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) an empty capped bottle (d) a pebble
36. 36.⚖️ 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
37. 37.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
38. 38.True or false: a coin floats on water. (a) True (b) False
39. 39.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) a coin (d) an ice-cream stick
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a magnet (d) a tub of water

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