Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 842 · 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.⚖️ 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 kind of clay (c) whether it floats (d) the shape of the clay
2. 2.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
3. 3.🧺 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 battery cell (d) a towel for spills
4. 4.⚖️ 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
5. 5.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
6. 6.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
7. 7.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) an empty capped bottle (d) a metal key
8. 8.True or false: a feather floats on water. (a) True (b) False
9. 9.🧺 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
10. 10.⚖️ 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
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.🌊 What pushes a floating cork upward? (a) the tub (b) the water (c) the cork itself (d) the air above
13. 13.🛟 Which of these floats on water? (a) an iron nail (b) a ball of clay (c) a feather (d) a pebble
14. 14.🔮 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
15. 15.⚖️ 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) True (b) False
16. 16.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a coin (d) an empty capped bottle
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a tub of water (d) a balloon
19. 19.🧺 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) yeast
20. 20.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is magnetic (c) water is sticky (d) ice is very cold
21. 21.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
22. 22.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it sinks (d) it dissolves
23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a towel for spills (c) a mirror (d) turmeric powder
24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a tub of water (d) a towel for spills
25. 25.True or false: a cork sinks in water. (a) True (b) False
26. 26.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
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 keep it the same (c) we measure it
28. 28.🔍 Which is the odd one out? (a) a pebble (b) a steel spoon (c) a feather (d) a coin
29. 29.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
30. 30.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a pebble (d) an ice-cream stick
31. 31.🛟 Which of these sinks in water? (a) a dry leaf (b) a ball of clay (c) a feather (d) a cork
32. 32.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
33. 33.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
34. 34.🔮 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
35. 35.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
36. 36.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
37. 37.🧺 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) turmeric powder
38. 38.⚖️ 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 amount of clay (c) the shape of the clay
39. 39.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) whether it floats (d) the tub of water

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