Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 419 · 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.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
2. 2.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) a steel spoon (d) a dry leaf
3. 3.🔍 Which is the odd one out? (a) an ice cube (b) an empty capped bottle (c) a ball of clay (d) a cork
4. 4.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
5. 5.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) a coin (d) a cork
6. 6.🛟 Does a feather float or sink in water? (a) floats (b) sinks
7. 7.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
8. 8.⚖️ 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) False (b) True
9. 9.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) a feather (d) a metal key
10. 10.⚖️ 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 amount of clay (c) the shape of the clay (d) whether it floats
11. 11.🧺 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) small test objects (d) a balloon
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a towel for spills (d) a battery cell
13. 13.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
15. 15.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) yeast (d) a results table
17. 17.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
18. 18.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it sinks (d) it floats
19. 19.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the water (d) the cork itself
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a tub of water
21. 21.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.🧺 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) turmeric powder (d) small test objects
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a mirror (d) a results table
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) a piece of thermocol (d) a ball of clay
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the amount of clay (d) the tub of water
30. 30.⚖️ 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) False (b) True
31. 31.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
32. 32.⚖️ 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 tub of water
33. 33.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it turns to stone (d) it sinks faster
34. 34.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) yeast (c) a tub of water (d) a towel for spills
36. 36.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
37. 37.⚖️ 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
38. 38.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
39. 39.True or false: an empty capped bottle sinks in water. (a) False (b) True
40. 40.True or false: a ping-pong ball sinks in water. (a) False (b) True

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