Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 130 · 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 safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) yeast (d) a balloon
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 change it (b) we measure it (c) we keep it the same
4. 4.⚖️ 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 tub of water (c) the shape of the clay (d) whether it floats
5. 5.⚖️ 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 kind of clay (c) the shape of the clay
6. 6.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
7. 7.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a balloon (d) a tub of water
9. 9.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) turmeric powder (c) small test objects (d) a results table
12. 12.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) small test objects (d) a tub of water
14. 14.🧺 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) turmeric powder (d) small test objects
15. 15.🧺 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) a balloon (d) a tub of water
16. 16.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) whether it floats (d) the kind of clay
18. 18.True or false: an iron nail floats on water. (a) False (b) True
19. 19.True or false: an empty capped bottle sinks in water. (a) True (b) False
20. 20.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
21. 21.⚖️ 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 change it (c) we measure it
22. 22.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to keep children safe (d) to hide the corks
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a results table (c) turmeric powder (d) a magnet
24. 24.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
25. 25.🛟 Which of these floats on water? (a) an iron nail (b) a feather (c) a ball of clay (d) a coin
26. 26.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
27. 27.True or false: a ping-pong ball sinks in water. (a) True (b) False
28. 28.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
29. 29.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
30. 30.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a towel for spills (d) a battery cell
33. 33.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it bounces up (d) it floats
34. 34.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice cube (c) an ice-cream stick (d) a metal key
35. 35.⚖️ 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
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
38. 38.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) a dry leaf (d) an ice-cream stick
40. 40.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold

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