Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 548 · 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.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) it turns to sugar (d) yes, all of it
2. 2.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
3. 3.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) a magnet (d) muddy water
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) yeast (c) a battery cell (d) a balloon
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a balloon (d) muddy water
6. 6.True or false: bad grains from rice is done by filtering. (a) True (b) False
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
8. 8.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
9. 9.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
10. 10.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) gravel from fine sand (c) small stones from dal (d) husk from rice grain
11. 11.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
12. 12.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) turmeric powder (d) a funnel
13. 13.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) lick your fingers (c) wipe hands on face (d) nothing is needed
14. 14.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
15. 15.🫗 Which of these is done by filtering? (a) sugar from sugar water (b) mud from water (c) bad grains from rice (d) salt from sea water
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) True (b) False
17. 17.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is cold (d) yes, if it is clear
18. 18.⚖️ 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
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) sand and pebbles (d) a mirror
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the same muddy water (c) the same funnel (d) the amount poured
21. 21.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
24. 24.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) handpicking (d) winnowing
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we change it (b) we keep it the same (c) we measure it
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
28. 28.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is hot (d) clear water is salty
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) a mirror (d) a funnel
30. 30.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a battery cell (c) sand and pebbles (d) a balloon
31. 31.🫗 Which of these is done by handpicking? (a) husk from rice grain (b) bad grains from rice (c) bran from wheat flour (d) chaff from wheat grain
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is the one thing we change. (a) True (b) False
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the amount poured (c) the filter material (d) the same muddy water
34. 34.🫗 Which of these is done by winnowing? (a) tea leaves from tea (b) husk from rice grain (c) bran from wheat flour (d) mud from water
35. 35.True or false: bran from wheat flour is done by handpicking. (a) False (b) True
36. 36.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the filter traps mud (c) the mud dissolves (d) the water evaporates
37. 37.🫗 How do we separate bad grains from rice? (a) sieving (b) handpicking (c) filtering (d) winnowing
38. 38.True or false: husk from rice grain is done by handpicking. (a) True (b) False
39. 39.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it

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