Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 648 · 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.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
2. 2.True or false: small stones from dal is done by sieving. (a) True (b) False
3. 3.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) the filter material (d) the same muddy water
5. 5.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
6. 6.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
7. 7.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
8. 8.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
9. 9.True or false: mud from water is done by handpicking. (a) True (b) False
10. 10.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
11. 11.🫗 Which of these is done by handpicking? (a) small stones from dal (b) sugar from sugar water (c) salt from sea water (d) husk from rice grain
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same funnel (b) how clear the water is (c) the filter material
13. 13.🫗 How do we separate bran from wheat flour? (a) winnowing (b) filtering (c) handpicking (d) sieving
14. 14.True or false: small stones from dal is done by handpicking. (a) False (b) True
15. 15.🫗 Which of these is done by sieving? (a) mud from water (b) chaff from wheat grain (c) gravel from fine sand (d) salt from sea water
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
17. 17.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) muddy water (d) turmeric powder
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) yeast (d) cotton or cloth
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
20. 20.🫗 How do we separate salt from sea water? (a) filtering (b) handpicking (c) evaporating (d) sieving
21. 21.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) cotton or cloth (d) a magnet
22. 22.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a magnet
23. 23.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
24. 24.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) husk from rice grain (c) bad grains from rice (d) bran from wheat flour
25. 25.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) sugar from sugar water (c) salt from sea water (d) chaff from wheat grain
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) muddy water (c) a mirror (d) turmeric powder
27. 27.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) filtering (c) winnowing (d) handpicking
28. 28.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) bran from wheat flour (c) mud from water (d) bad grains from rice
29. 29.True or false: bad grains from rice is done by evaporating. (a) False (b) True
30. 30.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it floats on top (c) it sinks to the bottom (d) it dissolves
31. 31.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) lick your fingers (d) wipe hands on face
32. 32.True or false: tea leaves from tea is done by filtering. (a) False (b) True
33. 33.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) bad grains from rice (c) mud from water (d) salt from sea water
34. 34.⚖️ 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
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) a funnel (d) a mirror
36. 36.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) a clean glass (d) yeast
38. 38.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
39. 39.🧺 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
40. 40.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) turmeric powder (c) a battery cell (d) a magnet

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