Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 41 · 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: the same glass is kept the same. (a) False (b) True
3. 3.⚖️ 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 change it (c) we measure it
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) yeast (c) a clean glass (d) muddy water
5. 5.True or false: small stones from dal is done by handpicking. (a) True (b) False
6. 6.True or false: bran from wheat flour is done by sieving. (a) True (b) False
7. 7.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a battery cell
8. 8.🧺 Which of these is not needed for the muddy water filter? (a) a battery cell (b) cotton or cloth (c) muddy water (d) sand and pebbles
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) True (b) False
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 measure it (b) we change it (c) we keep it the same
11. 11.True or false: gravel from fine sand is done by sieving. (a) False (b) True
12. 12.🛟 Why should you never drink water just because it looks clear? (a) germs are invisible (b) clear water is sweet (c) clear water is salty (d) clear water is hot
13. 13.🫗 How do we separate small stones from dal? (a) winnowing (b) evaporating (c) handpicking (d) sieving
14. 14.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the mud (b) nothing (c) the salt (d) the water
15. 15.🧺 Which of these is needed for the muddy water filter? (a) yeast (b) sand and pebbles (c) a magnet (d) a mirror
16. 16.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
17. 17.⚖️ 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
18. 18.🫗 Which of these is done by sieving? (a) salt from sea water (b) small stones from dal (c) sugar from sugar water (d) bran from wheat flour
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 filter material (b) the same funnel (c) the amount poured (d) the same muddy water
20. 20.True or false: husk from rice grain is done by sieving. (a) True (b) False
21. 21.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) turmeric powder (c) a clean glass (d) a magnet
22. 22.🛟 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
23. 23.🫗 Which of these is done by sieving? (a) small stones from dal (b) mud from water (c) gravel from fine sand (d) sugar from sugar water
24. 24.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
25. 25.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
26. 26.True or false: husk from rice grain is done by filtering. (a) True (b) False
27. 27.True or false: small stones from dal is done by sieving. (a) True (b) False
28. 28.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
29. 29.⚖️ 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) True (b) False
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) a funnel (b) sand and pebbles (c) a mirror (d) muddy water
31. 31.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
32. 32.🔮 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
33. 33.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
34. 34.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) gravel from fine sand (c) husk from rice grain (d) small stones from dal
35. 35.True or false: sugar from sugar water is done by filtering. (a) True (b) False
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
38. 38.🫗 How do we separate sugar from sugar water? (a) sieving (b) evaporating (c) winnowing (d) filtering
39. 39.True or false: a funnel 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) cotton or cloth (b) a funnel (c) a clean glass (d) a balloon

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