Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 502 · 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) sand and pebbles (b) a magnet (c) a funnel (d) cotton or cloth
2. 2.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
3. 3.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) a funnel (d) a balloon
4. 4.⚖️ 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
5. 5.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
6. 6.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) how clear the water is (c) the same muddy water (d) the same funnel
7. 7.🫗 How do we separate husk from rice grain? (a) sieving (b) winnowing (c) evaporating (d) handpicking
8. 8.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) turmeric powder (d) a funnel
9. 9.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
10. 10.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) husk from rice grain (c) sugar from sugar water (d) bran from wheat flour
11. 11.True or false: cotton or cloth is not needed for the muddy water filter. (a) False (b) True
12. 12.True or false: small stones from dal is done by evaporating. (a) True (b) False
13. 13.🫗 Which of these is done by sieving? (a) salt from sea water (b) chaff from wheat grain (c) gravel from fine sand (d) tea leaves from tea
14. 14.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) lick your fingers (d) nothing is needed
15. 15.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
16. 16.⚖️ 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 change it (c) we measure it
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a battery cell
19. 19.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
20. 20.🫗 How do we separate bad grains from rice? (a) evaporating (b) winnowing (c) filtering (d) handpicking
21. 21.⚖️ 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
22. 22.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) cotton or cloth (c) muddy water (d) a funnel
24. 24.🫗 Which of these is done by winnowing? (a) mud from water (b) gravel from fine sand (c) husk from rice grain (d) salt from sea water
25. 25.🫗 Which of these is done by handpicking? (a) bran from wheat flour (b) gravel from fine sand (c) husk from rice grain (d) bad grains from rice
26. 26.True or false: yeast is needed for the muddy water filter. (a) False (b) True
27. 27.⚖️ 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 funnel (b) the same muddy water (c) the filter material (d) the same glass
28. 28.🫗 How do we separate gravel from fine sand? (a) evaporating (b) sieving (c) handpicking (d) filtering
29. 29.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) a balloon (c) a magnet (d) a battery cell
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) a mirror (d) a clean glass
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) turmeric powder (d) cotton or cloth
32. 32.True or false: bran from wheat flour is done by sieving. (a) True (b) False
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
34. 34.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
35. 35.⚖️ 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
36. 36.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is salty (c) germs are invisible (d) clear water is sweet
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) sand and pebbles (d) a magnet
38. 38.⚖️ 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 keep it the same (c) we measure it
39. 39.True or false: bad grains from rice is done by handpicking. (a) True (b) False
40. 40.🫗 Which of these is done by evaporating? (a) mud from water (b) bad grains from rice (c) husk from rice grain (d) salt from sea water

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