Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 188 · 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) a clean glass (c) sand and pebbles (d) a magnet
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) turmeric powder (c) muddy water (d) a funnel
3. 3.🫗 How do we separate gravel from fine sand? (a) sieving (b) handpicking (c) evaporating (d) filtering
4. 4.True or false: bad grains from rice is done by filtering. (a) False (b) True
5. 5.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) tea leaves from tea (c) husk from rice grain (d) sugar from sugar water
6. 6.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is hot (d) clear water is salty
7. 7.🫗 Which of these is done by handpicking? (a) small stones from dal (b) husk from rice grain (c) sugar from sugar water (d) tea leaves from tea
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is the one thing we change. (a) False (b) True
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the amount poured (b) the same muddy water (c) how clear the water is (d) the same funnel
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) False (b) True
11. 11.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a balloon (c) a funnel (d) a battery cell
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) muddy water (d) a balloon
13. 13.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
14. 14.⚖️ 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) the same glass (c) how clear the water is
15. 15.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
16. 16.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) a clean glass (d) a battery cell
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) winnowing (d) filtering
19. 19.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False
21. 21.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
22. 22.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
23. 23.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is cold (c) no, germs may stay (d) yes, if it is clear
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) cotton or cloth (d) muddy water
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) sand and pebbles (c) muddy water (d) a funnel
26. 26.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
27. 27.🫗 Which of these is done by sieving? (a) husk from rice grain (b) gravel from fine sand (c) sugar from sugar water (d) mud from water
28. 28.🫗 How do we separate husk from rice grain? (a) evaporating (b) handpicking (c) winnowing (d) sieving
29. 29.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
30. 30.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a battery cell
32. 32.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
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) the same glass (b) the amount poured (c) the same muddy water (d) the filter material
34. 34.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) muddier (d) clearer
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) muddy water (c) sand and pebbles (d) cotton or cloth
36. 36.🫗 Which of these is done by filtering? (a) salt from sea water (b) sugar from sugar water (c) husk from rice grain (d) mud from water
37. 37.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
38. 38.🫗 How do we separate bran from wheat flour? (a) handpicking (b) filtering (c) sieving (d) winnowing
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
40. 40.⚖️ 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

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