Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 809 · 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.True or false: a funnel is not needed for the muddy water filter. (a) False (b) True
2. 2.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
3. 3.🫗 Which of these is done by filtering? (a) mud from water (b) small stones from dal (c) bad grains from rice (d) chaff from wheat grain
4. 4.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
5. 5.True or false: salt from sea water is done by handpicking. (a) False (b) True
6. 6.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) hot (c) salty (d) clearer
7. 7.🫗 Which of these is done by filtering? (a) bad grains from rice (b) gravel from fine sand (c) small stones from dal (d) tea leaves from tea
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) a clean glass (c) sand and pebbles (d) a funnel
10. 10.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) tea leaves from tea (c) sugar from sugar water (d) bad grains from rice
11. 11.🫗 How do we separate chaff from wheat grain? (a) evaporating (b) handpicking (c) winnowing (d) filtering
12. 12.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
13. 13.🧺 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 balloon
14. 14.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a clean glass (c) muddy water (d) a funnel
15. 15.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
16. 16.⚖️ 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 same glass (c) how clear the water is (d) the amount poured
17. 17.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
18. 18.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
19. 19.⚖️ 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) True (b) False
20. 20.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
21. 21.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) mud from water (c) chaff from wheat grain (d) sugar from sugar water
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) yeast (d) cotton or cloth
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “how clear the water is”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
26. 26.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a funnel (c) a magnet (d) yeast
27. 27.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
28. 28.True or false: bad grains from rice is done by sieving. (a) True (b) False
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the water (d) the mud
30. 30.🫗 How do we separate salt from sea water? (a) filtering (b) winnowing (c) evaporating (d) sieving
31. 31.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) nothing is needed (c) wipe hands on face (d) lick your fingers
32. 32.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same muddy water (c) the same funnel (d) the same glass
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the amount poured (b) how clear the water is (c) the filter material
34. 34.🫗 How do we separate husk from rice grain? (a) winnowing (b) filtering (c) handpicking (d) evaporating
35. 35.🫗 How do we separate small stones from dal? (a) sieving (b) handpicking (c) evaporating (d) filtering
36. 36.⚖️ 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
37. 37.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) gravel from fine sand (c) sugar from sugar water (d) bad grains from rice
38. 38.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a clean glass (d) turmeric powder
39. 39.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the filter traps mud (c) the filter adds soap (d) the water evaporates
40. 40.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) gravel from fine sand (c) bran from wheat flour (d) salt from sea water

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