Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 163 · 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 balloon is not needed for the muddy water filter. (a) False (b) True
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
3. 3.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is salty (c) clear water is sweet (d) clear water is hot
4. 4.⚖️ 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 same glass (c) the filter material (d) the same funnel
5. 5.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
6. 6.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) handpicking (d) evaporating
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) a magnet (d) a funnel
8. 8.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
9. 9.⚖️ 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
10. 10.⚖️ 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 measure it (c) we change it
11. 11.True or false: a mirror is needed for the muddy water filter. (a) True (b) False
12. 12.True or false: tea leaves from tea is done by winnowing. (a) True (b) False
13. 13.🫗 How do we separate tea leaves from tea? (a) handpicking (b) filtering (c) sieving (d) winnowing
14. 14.⚖️ 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
15. 15.🧺 Do we need a clean glass 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 filter material (c) the amount poured (d) how clear the water is
17. 17.True or false: tea leaves from tea is done by sieving. (a) True (b) False
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same glass (b) the filter material (c) how clear the water is
19. 19.🫗 How do we separate sugar from sugar water? (a) handpicking (b) sieving (c) winnowing (d) evaporating
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
21. 21.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
22. 22.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) tea stays behind (c) leaves pass through (d) both stay behind
23. 23.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) small stones from dal (c) sugar from sugar water (d) bran from wheat flour
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) sand and pebbles (c) a funnel (d) a magnet
25. 25.True or false: sugar from sugar water is done by sieving. (a) True (b) False
26. 26.🫗 How do we separate chaff from wheat grain? (a) sieving (b) winnowing (c) filtering (d) evaporating
27. 27.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bad grains from rice (c) gravel from fine sand (d) husk from rice grain
28. 28.🔍 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
29. 29.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
30. 30.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the mud (c) the salt (d) nothing
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) cotton or cloth (d) a battery cell
32. 32.🫗 How do we separate salt from sea water? (a) filtering (b) handpicking (c) evaporating (d) sieving
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: bad grains from rice is done by sieving. (a) False (b) True
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) muddy water (c) a clean glass (d) yeast
36. 36.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a clean glass (c) muddy water (d) a mirror
38. 38.🫗 Which of these is done by winnowing? (a) bad grains from rice (b) mud from water (c) chaff from wheat grain (d) bran from wheat flour
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a balloon
40. 40.True or false: small stones from dal is done by sieving. (a) True (b) False

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