Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 853 · 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 of these floats on water? (a) a pebble (b) a ball of clay (c) an ice cube (d) a metal key
2. 2.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
3. 3.⚖️ 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 measure it (b) we keep it the same (c) we change it
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) yeast (c) turmeric powder (d) a magnet
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a balloon (d) turmeric powder
6. 6.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
7. 7.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
8. 8.🔮 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
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
10. 10.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a metal key (d) a dry leaf
11. 11.🔍 Which is the odd one out? (a) a coin (b) an empty capped bottle (c) a steel spoon (d) an iron nail
12. 12.🔍 Which is the odd one out? (a) an empty capped bottle (b) a piece of thermocol (c) an ice-cream stick (d) a coin
13. 13.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
14. 14.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
15. 15.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
16. 16.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
17. 17.⚖️ 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 tub of water (b) the kind of clay (c) whether it floats (d) the shape of the clay
18. 18.True or false: a steel spoon sinks in water. (a) False (b) True
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a battery cell (d) small test objects
20. 20.⚖️ 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
21. 21.⚖️ 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
22. 22.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
23. 23.🛟 Which of these floats on water? (a) a coin (b) a cork (c) a ball of clay (d) an iron nail
24. 24.True or false: a ball of clay floats on water. (a) False (b) True
25. 25.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) small test objects (c) a results table (d) a tub of water
27. 27.🛟 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
28. 28.True or false: a coin floats on water. (a) False (b) True
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) a battery cell
31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) yeast
32. 32.🔍 Which is the odd one out? (a) a pebble (b) an iron nail (c) a ball of clay (d) an ice cube
33. 33.🛟 Which of these sinks in water? (a) a pebble (b) a cork (c) an empty capped bottle (d) a feather
34. 34.True or false: a cork floats on water. (a) False (b) True
35. 35.⚖️ 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
36. 36.🛟 Does a feather float or sink in water? (a) floats (b) sinks
37. 37.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
38. 38.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) turmeric powder (d) a towel for spills
40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a results table (d) small test objects

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