Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 109 · 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 done by handpicking? (a) mud from water (b) gravel from fine sand (c) salt from sea water (d) bad grains from rice
2. 2.🫗 Why does filtered muddy water look clearer? (a) the mud dissolves (b) the water evaporates (c) the filter adds soap (d) the filter traps mud
3. 3.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) turmeric powder (d) muddy water
5. 5.🫗 How do we separate bran from wheat flour? (a) winnowing (b) evaporating (c) sieving (d) handpicking
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a balloon (c) cotton or cloth (d) sand and pebbles
7. 7.🫗 How do we separate chaff from wheat grain? (a) sieving (b) evaporating (c) winnowing (d) filtering
8. 8.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves pass through (c) leaves stay behind (d) tea stays behind
9. 9.🫗 How do we separate mud from water? (a) sieving (b) filtering (c) handpicking (d) winnowing
10. 10.🫗 How do we separate husk from rice grain? (a) evaporating (b) handpicking (c) sieving (d) winnowing
11. 11.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
12. 12.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
13. 13.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a balloon (c) turmeric powder (d) sand and pebbles
14. 14.🫗 How do we separate small stones from dal? (a) filtering (b) sieving (c) winnowing (d) handpicking
15. 15.True or false: sugar from sugar water is done by filtering. (a) False (b) True
16. 16.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) yes, all of it (d) it turns to sand
17. 17.True or false: salt from sea water is done by filtering. (a) True (b) False
18. 18.⚖️ 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 filter material (c) the same funnel (d) the same glass
19. 19.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) muddy water (c) a battery cell (d) cotton or cloth
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
22. 22.🫗 How do we separate salt from sea water? (a) winnowing (b) filtering (c) handpicking (d) evaporating
23. 23.⚖️ 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
24. 24.🫗 How do we separate bad grains from rice? (a) sieving (b) filtering (c) handpicking (d) evaporating
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) cotton or cloth (c) a clean glass (d) a battery cell
26. 26.⚖️ 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
27. 27.⚖️ 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 measure it (c) we keep it the same
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the amount poured
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) cotton or cloth (c) yeast (d) sand and pebbles
30. 30.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
31. 31.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
32. 32.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) muddy water (d) a balloon
33. 33.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the filter material (c) the same glass
34. 34.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
35. 35.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
37. 37.⚖️ 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 change it (c) we keep it the same
38. 38.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a battery cell (c) a magnet (d) a mirror
39. 39.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) salty (c) clearer (d) muddier
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) False (b) True

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