Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 790 · 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 done by filtering? (a) chaff from wheat grain (b) gravel from fine sand (c) bran from wheat flour (d) mud from water
2. 2.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
3. 3.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
5. 5.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
6. 6.🫗 How do we separate mud from water? (a) sieving (b) handpicking (c) filtering (d) winnowing
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a funnel (d) a balloon
8. 8.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a magnet (c) cotton or cloth (d) yeast
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) muddy water (c) a balloon (d) a magnet
10. 10.⚖️ 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 muddy water (b) the filter material (c) how clear the water is (d) the same glass
11. 11.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
12. 12.🫗 Which of these is done by filtering? (a) small stones from dal (b) gravel from fine sand (c) salt from sea water (d) tea leaves from tea
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) tea stays behind (d) both stay behind
15. 15.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
16. 16.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
17. 17.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) the salt (c) the water (d) nothing
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) sand and pebbles (d) a magnet
19. 19.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it dissolves (d) it floats on top
20. 20.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
21. 21.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) chaff from wheat grain (c) bad grains from rice (d) bran from wheat flour
22. 22.🫗 How do we separate sugar from sugar water? (a) winnowing (b) handpicking (c) sieving (d) evaporating
23. 23.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) yeast (d) a clean glass
24. 24.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
25. 25.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) hot (c) clearer (d) muddier
26. 26.True or false: husk from rice grain is done by winnowing. (a) False (b) True
27. 27.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) yeast (d) muddy water
30. 30.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bran from wheat flour (c) small stones from dal (d) mud from water
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.⚖️ 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) False (b) True
33. 33.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a magnet (c) a funnel (d) muddy water
35. 35.🫗 How do we separate salt from sea water? (a) handpicking (b) winnowing (c) evaporating (d) filtering
36. 36.True or false: bad grains from rice is done by winnowing. (a) True (b) False
37. 37.🫗 How do we separate bad grains from rice? (a) winnowing (b) evaporating (c) sieving (d) handpicking
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) a battery cell
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) muddy water (d) turmeric powder
40. 40.True or false: tea leaves from tea is done by sieving. (a) False (b) True

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