Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 362 · 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.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) a clean glass (d) a funnel
3. 3.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
4. 4.🫗 How do we separate small stones from dal? (a) handpicking (b) sieving (c) evaporating (d) winnowing
5. 5.True or false: small stones from dal is done by handpicking. (a) True (b) False
6. 6.True or false: small stones from dal is done by sieving. (a) True (b) False
7. 7.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it sinks to the bottom (c) it turns to sand (d) it floats on top
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water 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 the one thing we change? (a) the filter material (b) the amount poured (c) the same funnel (d) how clear the water is
10. 10.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the filter traps mud (d) the mud dissolves
11. 11.🫗 How do we separate chaff from wheat grain? (a) sieving (b) winnowing (c) handpicking (d) filtering
12. 12.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) both stay behind (d) tea stays behind
13. 13.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) sand and pebbles (d) a balloon
14. 14.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a battery cell (c) a funnel (d) a magnet
15. 15.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) cotton or cloth (c) a clean glass (d) sand and pebbles
17. 17.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, if it is cold (c) yes, if it is clear (d) yes, always
18. 18.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is sweet (d) clear water is salty
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a mirror (c) a funnel (d) sand and pebbles
20. 20.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) evaporating (d) handpicking
21. 21.🫗 How do we separate husk from rice grain? (a) filtering (b) handpicking (c) evaporating (d) winnowing
22. 22.🫗 Which of these is done by winnowing? (a) small stones from dal (b) husk from rice grain (c) salt from sea water (d) tea leaves from tea
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a magnet (c) muddy water (d) a clean glass
24. 24.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) bran from wheat flour (c) salt from sea water (d) small stones from dal
27. 27.🫗 How do we separate sugar from sugar water? (a) sieving (b) handpicking (c) evaporating (d) winnowing
28. 28.🫗 Which of these is done by sieving? (a) mud from water (b) salt from sea water (c) gravel from fine sand (d) small stones from dal
29. 29.⚖️ 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
30. 30.🫗 How do we separate tea leaves from tea? (a) winnowing (b) evaporating (c) filtering (d) sieving
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a battery cell (c) turmeric powder (d) muddy water
34. 34.True or false: mud from water is done by filtering. (a) False (b) True
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) a funnel (c) sand and pebbles (d) a clean glass
36. 36.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
37. 37.⚖️ 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
38. 38.🫗 Which of these is done by filtering? (a) bad grains from rice (b) bran from wheat flour (c) mud from water (d) husk from rice grain
39. 39.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) yeast (d) a funnel
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False

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