Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 84 · 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.True or false: a piece of thermocol floats on water. (a) False (b) True
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a magnet (d) a towel for spills
3. 3.🌊 What pushes a floating cork upward? (a) the cork itself (b) the water (c) the tub (d) the air above
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a towel for spills (c) a tub of water (d) small test objects
5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a towel for spills (d) a battery cell
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) turmeric powder (d) a mirror
7. 7.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) a cork (b) a piece of thermocol (c) a coin (d) a feather
10. 10.⚖️ 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
11. 11.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
12. 12.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
13. 13.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
14. 14.🛟 Does a feather float or sink in water? (a) sinks (b) floats
15. 15.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
16. 16.🔮 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 turns to stone (d) it dissolves
17. 17.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a ball of clay (d) a piece of thermocol
18. 18.🛟 Which of these sinks in water? (a) a pebble (b) a dry leaf (c) an ice-cream stick (d) a cork
19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) True (b) False
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a magnet (c) a battery cell (d) a balloon
21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the tub of water (c) the amount of clay (d) the shape of the clay
23. 23.⚖️ 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 measure it (b) we change it (c) we keep it the same
24. 24.🛟 Which of these sinks in water? (a) a steel spoon (b) an ice-cream stick (c) a piece of thermocol (d) an empty capped bottle
25. 25.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
26. 26.True or false: an ice-cream stick floats on water. (a) True (b) False
27. 27.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it sinks (d) it melts
28. 28.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
29. 29.🛟 Which of these floats on water? (a) a coin (b) a ball of clay (c) a dry leaf (d) a glass marble
30. 30.⚖️ 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) whether it floats (c) the shape of the clay
31. 31.🛟 Which of these floats on water? (a) a glass marble (b) an ice cube (c) a pebble (d) a coin
32. 32.True or false: a steel spoon sinks in water. (a) False (b) True
33. 33.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
34. 34.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
35. 35.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
36. 36.🛟 Which of these sinks in water? (a) a coin (b) an empty capped bottle (c) a cork (d) a dry leaf
37. 37.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
38. 38.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a results table (c) small test objects (d) a tub of water
40. 40.⚖️ 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

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