Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 340 · 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 needed for the muddy water filter? (a) a clean glass (b) yeast (c) a magnet (d) a balloon
2. 2.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a balloon (c) muddy water (d) a magnet
3. 3.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
4. 4.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.True or false: mud from water is done by sieving. (a) True (b) False
9. 9.True or false: bad grains from rice is done by evaporating. (a) False (b) True
10. 10.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
11. 11.🫗 How do we separate salt from sea water? (a) evaporating (b) winnowing (c) handpicking (d) filtering
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
15. 15.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
16. 16.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
17. 17.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
19. 19.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a funnel (d) turmeric powder
20. 20.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
21. 21.⚖️ 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) False (b) True
22. 22.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) sugar from sugar water (c) chaff from wheat grain (d) bad grains from rice
23. 23.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) sand and pebbles (d) a mirror
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False
25. 25.🫗 Which of these is done by filtering? (a) husk from rice grain (b) tea leaves from tea (c) gravel from fine sand (d) small stones from dal
26. 26.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
27. 27.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
28. 28.🫗 Which of these is done by filtering? (a) bran from wheat flour (b) bad grains from rice (c) mud from water (d) husk from rice grain
29. 29.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, if it is cold (c) yes, always (d) no, germs may stay
30. 30.True or false: yeast is needed for the muddy water filter. (a) True (b) False
31. 31.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is hot (d) clear water is sweet
32. 32.⚖️ 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
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 same glass (c) the filter material (d) the same funnel
34. 34.True or false: chaff from wheat grain is done by sieving. (a) True (b) False
35. 35.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the filter material (c) the same funnel (d) how clear the water is
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) sand and pebbles (c) a mirror (d) muddy water
38. 38.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
39. 39.🫗 How do we separate small stones from dal? (a) evaporating (b) handpicking (c) winnowing (d) sieving
40. 40.🫗 How do we separate gravel from fine sand? (a) handpicking (b) evaporating (c) sieving (d) filtering

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