Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 964 · 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) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a mirror (c) turmeric powder (d) a results table
4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) True (b) False
5. 5.🛟 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
6. 6.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
7. 7.🛟 Which of these floats on water? (a) an iron nail (b) a ping-pong ball (c) a steel spoon (d) a coin
8. 8.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
9. 9.⚖️ 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 amount of clay (d) whether it floats
10. 10.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
11. 11.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
12. 12.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a cork (d) a metal key
13. 13.⚖️ 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
14. 14.🔍 Which is the odd one out? (a) a pebble (b) an ice-cream stick (c) a glass marble (d) a ball of clay
15. 15.🧊 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
16. 16.🔍 Which is the odd one out? (a) a piece of thermocol (b) a pebble (c) an iron nail (d) a glass marble
17. 17.⚖️ 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 keep it the same (b) we measure it (c) we change it
18. 18.🧺 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) yeast
19. 19.⚖️ 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 change it (c) we measure it
20. 20.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
21. 21.🛟 Which of these floats on water? (a) a dry leaf (b) a coin (c) a glass marble (d) an iron nail
22. 22.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
26. 26.🛟 Which of these floats on water? (a) an empty capped bottle (b) an iron nail (c) a glass marble (d) a ball of clay
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a magnet (d) turmeric powder
28. 28.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the air above (d) the water
29. 29.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
30. 30.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.⚖️ 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) the tub of water (c) the shape of the clay (d) whether it floats
34. 34.🔍 Which is the odd one out? (a) an empty capped bottle (b) a metal key (c) a glass marble (d) an iron nail
35. 35.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
36. 36.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
37. 37.⚖️ 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
38. 38.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) a tub of water (d) a results table
40. 40.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed

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