Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 858 · 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.⚖️ 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
2. 2.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it sinks to the bottom (c) it turns to sand (d) it dissolves
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🫗 Which of these is done by filtering? (a) husk from rice grain (b) tea leaves from tea (c) sugar from sugar water (d) small stones from dal
6. 6.True or false: salt from sea water is done by filtering. (a) True (b) False
7. 7.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
8. 8.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) wash hands afterwards (d) nothing is needed
9. 9.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.🫗 Which of these is done by filtering? (a) mud from water (b) chaff from wheat grain (c) sugar from sugar water (d) salt from sea water
13. 13.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
14. 14.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) yeast (d) muddy water
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
17. 17.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
18. 18.⚖️ 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
19. 19.⚖️ 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 amount poured
20. 20.🫗 Which of these is done by winnowing? (a) husk from rice grain (b) small stones from dal (c) bad grains from rice (d) tea leaves from tea
21. 21.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a magnet (c) a mirror (d) a battery cell
22. 22.⚖️ 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) False (b) True
23. 23.🫗 How do we separate bad grains from rice? (a) winnowing (b) handpicking (c) sieving (d) filtering
24. 24.🫗 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
25. 25.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
26. 26.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
27. 27.⚖️ 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) the filter material (c) the same funnel (d) how clear the water is
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we measure it (c) we keep it the same
29. 29.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) a magnet (c) a funnel (d) a mirror
30. 30.True or false: gravel from fine sand is done by handpicking. (a) True (b) False
31. 31.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
32. 32.🫗 Which of these is done by handpicking? (a) chaff from wheat grain (b) gravel from fine sand (c) bad grains from rice (d) mud from water
33. 33.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) salty (c) hot (d) muddier
34. 34.True or false: bad grains from rice is done by evaporating. (a) False (b) True
35. 35.🫗 How do we separate sugar from sugar water? (a) evaporating (b) handpicking (c) sieving (d) winnowing
36. 36.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
37. 37.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) tea stays behind (c) both stay behind (d) leaves stay behind
38. 38.True or false: bad grains from rice is done by handpicking. (a) False (b) True
39. 39.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
40. 40.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a balloon (b) a funnel (c) sand and pebbles (d) a clean glass

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