Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 707 · 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 sinks in water? (a) a ping-pong ball (b) a dry leaf (c) an iron nail (d) an ice cube
2. 2.⚖️ 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
3. 3.⚖️ 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) False (b) True
4. 4.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) a steel spoon (d) a dry leaf
5. 5.🛟 Which of these floats on water? (a) a glass marble (b) a pebble (c) an ice-cream stick (d) a steel spoon
6. 6.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
7. 7.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
8. 8.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a mirror (c) yeast (d) turmeric powder
10. 10.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
11. 11.True or false: an iron nail sinks in water. (a) False (b) True
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a tub of water (d) a balloon
13. 13.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a tub of water (d) a balloon
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) yeast (d) a towel for spills
15. 15.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
16. 16.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it can float (d) it turns to stone
17. 17.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice cube (c) a dry leaf (d) an iron nail
18. 18.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
19. 19.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a magnet (d) a tub of water
21. 21.⚖️ 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 change it (b) we keep it the same (c) we measure it
22. 22.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a results table (c) turmeric powder (d) a battery cell
24. 24.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
25. 25.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
26. 26.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
27. 27.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
28. 28.🔍 Which is the odd one out? (a) a dry leaf (b) a cork (c) a pebble (d) an ice-cream stick
29. 29.🔍 Which is the odd one out? (a) a metal key (b) a ball of clay (c) a coin (d) a cork
30. 30.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a cork (d) a metal key
31. 31.⚖️ 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 shape of the clay (c) the tub of water (d) whether it floats
32. 32.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
33. 33.🛟 Which of these sinks in water? (a) a pebble (b) a dry leaf (c) a ping-pong ball (d) a cork
34. 34.True or false: a metal key floats on water. (a) True (b) False
35. 35.🧺 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) turmeric powder (d) a results table
36. 36.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
37. 37.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
38. 38.⚖️ 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
39. 39.🧺 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 tub of water (d) a balloon
40. 40.🔍 Which is the odd one out? (a) a feather (b) a dry leaf (c) an ice-cream stick (d) a ball of clay

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