Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 342 · 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 odd one out? (a) an iron nail (b) a feather (c) a steel spoon (d) a ball of clay
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) a magnet (d) a balloon
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) small test objects (d) a tub of water
4. 4.True or false: a steel spoon sinks in water. (a) True (b) False
5. 5.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) wipe up spills at once (d) run around the tub
6. 6.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) the shape of the clay (c) whether it floats
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
9. 9.⚖️ 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 keep it the same (b) we measure it (c) we change it
10. 10.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a pebble (d) an iron nail
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) yeast
12. 12.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
13. 13.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
14. 14.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
15. 15.🧺 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) a tub of water (d) a magnet
16. 16.⚖️ 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 measure it (b) we keep it the same (c) we change it
17. 17.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to keep children safe (d) to hide the corks
18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
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 the one thing we change. (a) True (b) False
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the kind of clay
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) a battery cell (d) a mirror
24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
25. 25.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
26. 26.🛟 Which of these sinks in water? (a) a feather (b) a cork (c) an ice-cream stick (d) a ball of clay
27. 27.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
28. 28.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an empty capped bottle (c) a steel spoon (d) a cork
29. 29.🛟 Which of these sinks in water? (a) a dry leaf (b) an empty capped bottle (c) a coin (d) an ice-cream stick
30. 30.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
31. 31.🔮 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
32. 32.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a ball of clay (d) a ping-pong ball
33. 33.🛟 Does a coin float or sink in water? (a) floats (b) sinks
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the shape of the clay (d) the tub of water
35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
36. 36.True or false: an iron nail floats on water. (a) True (b) False
37. 37.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
38. 38.⚖️ 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) False (b) True
39. 39.🔍 Which is the odd one out? (a) a dry leaf (b) a cork (c) an ice-cream stick (d) an iron nail
40. 40.🔍 Which is the odd one out? (a) a pebble (b) a metal key (c) a coin (d) an empty capped bottle

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