Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 11 · 40 questions

What you do (Choose the right way): 1. Put cotton or cloth in the funnel, then layers of sand and small pebbles. 2. Stand the funnel in a clean glass. 3. Pour muddy water in slowly and watch what drips out. 4. Compare the colour before and after — never drink it — and wash your hands.

1. 1.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) a mirror (d) a funnel
2. 2.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) yes, all of it (d) it turns to sand
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
4. 4.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) bran from wheat flour (c) tea leaves from tea (d) husk from rice grain
5. 5.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
6. 6.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) muddy water (c) a battery cell (d) sand and pebbles
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) yeast
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) turmeric powder (d) cotton or cloth
10. 10.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
11. 11.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
12. 12.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
13. 13.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
16. 16.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the filter adds soap (c) the filter traps mud (d) the mud dissolves
17. 17.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same glass
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
20. 20.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) salt from sea water (c) small stones from dal (d) gravel from fine sand
21. 21.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a magnet (d) a clean glass
23. 23.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a mirror (c) a funnel (d) a clean glass
25. 25.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
26. 26.🫗 Which of these is done by handpicking? (a) bad grains from rice (b) chaff from wheat grain (c) salt from sea water (d) mud from water
27. 27.🫗 Which of these is done by evaporating? (a) small stones from dal (b) chaff from wheat grain (c) sugar from sugar water (d) tea leaves from tea
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) the same muddy water (c) the filter material (d) how clear the water is
29. 29.True or false: gravel from fine sand is done by sieving. (a) False (b) True
30. 30.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) handpicking (d) sieving
31. 31.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) salt from sea water (d) small stones from dal
32. 32.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a mirror (d) sand and pebbles
33. 33.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
34. 34.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
35. 35.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
36. 36.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) mud from water (c) gravel from fine sand (d) bad grains from rice
37. 37.🫗 How do we separate salt from sea water? (a) filtering (b) evaporating (c) handpicking (d) sieving
38. 38.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) a magnet (b) muddy water (c) a funnel (d) cotton or cloth
40. 40.True or false: mud from water is done by handpicking. (a) False (b) True

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