Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 702 · 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? True or false: the shape of the clay is kept the same. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a pebble (b) a cork (c) a ball of clay (d) a steel spoon
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) a towel for spills (d) turmeric powder
5. 5.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) water is sticky (d) ice is magnetic
6. 6.⚖️ 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 amount of clay (c) the shape of the clay (d) the tub of water
7. 7.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) a dry leaf (b) a ball of clay (c) a cork (d) an ice-cream stick
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) a mirror (d) small test objects
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) a tub of water (d) small test objects
11. 11.True or false: a metal key sinks in water. (a) True (b) False
12. 12.🛟 Which of these floats on water? (a) a steel spoon (b) a piece of thermocol (c) a pebble (d) a ball of clay
13. 13.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it turns to stone (c) it dissolves (d) it sinks faster
14. 14.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) it has a magnet (d) sea water is warm
15. 15.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) a few ice cubes (d) more plain water
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) small test objects (d) a towel for spills
17. 17.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
18. 18.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
19. 19.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) a mirror
21. 21.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the big log (d) the small pebble
22. 22.🛟 Which of these sinks in water? (a) a dry leaf (b) a ball of clay (c) a cork (d) a ping-pong ball
23. 23.🛟 Which of these floats on water? (a) a pebble (b) a steel spoon (c) a ball of clay (d) a feather
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 magnet (c) small test objects (d) a results table
25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) small test objects (d) a results table
28. 28.⚖️ 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) False (b) True
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the amount of clay (d) the shape of the clay
30. 30.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a results table (d) turmeric powder
32. 32.True or false: an empty capped bottle floats on water. (a) True (b) False
33. 33.True or false: a ping-pong ball floats on water. (a) False (b) True
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a results table (c) a mirror (d) a battery cell
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a results table (d) a towel for spills
36. 36.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
37. 37.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) yeast (d) turmeric powder
39. 39.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
40. 40.True or false: an iron nail floats on water. (a) True (b) False

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