Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 997 · 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) not needed (b) needed
2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is kept the same. (a) True (b) False
3. 3.True or false: gravel from fine sand is done by sieving. (a) True (b) False
4. 4.🫗 How do we separate sugar from sugar water? (a) filtering (b) evaporating (c) sieving (d) winnowing
5. 5.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
6. 6.🫗 Which of these is done by handpicking? (a) gravel from fine sand (b) tea leaves from tea (c) chaff from wheat grain (d) small stones from dal
7. 7.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) a battery cell (d) yeast
8. 8.🫗 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
9. 9.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a battery cell
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is kept the same. (a) False (b) True
11. 11.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
12. 12.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a balloon (c) a clean glass (d) muddy water
13. 13.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is the one thing we change. (a) True (b) False
15. 15.🫗 How do we separate husk from rice grain? (a) filtering (b) evaporating (c) sieving (d) winnowing
16. 16.True or false: salt from sea water is done by evaporating. (a) True (b) False
17. 17.⚖️ 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
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) salty (d) hot
19. 19.⚖️ 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
20. 20.⚖️ 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
21. 21.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) chaff from wheat grain (c) salt from sea water (d) bad grains from rice
22. 22.True or false: a clean glass is not needed for the muddy water filter. (a) False (b) True
23. 23.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wash hands afterwards (d) wipe hands on face
24. 24.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) yes, all of it (c) no, salt passes through (d) it turns to sand
25. 25.True or false: salt from sea water is done by filtering. (a) False (b) True
26. 26.⚖️ 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 filter material (c) the same muddy water (d) the amount poured
27. 27.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) yeast (c) a clean glass (d) sand and pebbles
28. 28.True or false: cotton or cloth is not needed for the muddy water filter. (a) True (b) False
29. 29.⚖️ 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
30. 30.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
31. 31.⚖️ 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
32. 32.🫗 Which of these is done by evaporating? (a) bran from wheat flour (b) husk from rice grain (c) small stones from dal (d) sugar from sugar water
33. 33.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
34. 34.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) cotton or cloth (c) a funnel (d) a clean glass
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) a clean glass (d) a battery cell
36. 36.⚖️ 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
37. 37.True or false: gravel from fine sand is done by handpicking. (a) False (b) True
38. 38.🧺 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) a clean glass
39. 39.🫗 How do we separate bran from wheat flour? (a) winnowing (b) handpicking (c) sieving (d) evaporating
40. 40.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) muddy water (d) a clean glass

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