Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 372 · 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 a magnet for the muddy water filter? (a) needed (b) not needed
2. 2.⚖️ 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 same glass (c) the filter material
3. 3.True or false: bran from wheat flour is done by sieving. (a) False (b) True
4. 4.🔮 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
5. 5.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
6. 6.⚖️ 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 glass (b) the filter material (c) the amount poured (d) the same muddy water
7. 7.⚖️ 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
8. 8.🫗 Which of these is done by sieving? (a) tea leaves from tea (b) gravel from fine sand (c) husk from rice grain (d) bad grains from rice
9. 9.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) wash hands afterwards (c) nothing is needed (d) lick your fingers
10. 10.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
11. 11.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
12. 12.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
13. 13.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, always (d) yes, if it is clear
14. 14.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
15. 15.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
16. 16.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) clearer (b) muddier (c) salty (d) hot
17. 17.True or false: sand and pebbles is needed for the muddy water filter. (a) True (b) False
18. 18.⚖️ 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) True (b) False
19. 19.True or false: husk from rice grain is done by handpicking. (a) True (b) False
20. 20.🫗 How do we separate husk from rice grain? (a) filtering (b) winnowing (c) sieving (d) handpicking
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) yeast (c) cotton or cloth (d) muddy water
22. 22.🫗 Which of these is done by handpicking? (a) mud from water (b) bad grains from rice (c) bran from wheat flour (d) gravel from fine sand
23. 23.🧺 Do we need a funnel for the muddy water filter? (a) needed (b) not needed
24. 24.🫗 Which of these is done by evaporating? (a) small stones from dal (b) mud from water (c) salt from sea water (d) gravel from fine sand
25. 25.🫗 Which of these is done by filtering? (a) bad grains from rice (b) husk from rice grain (c) mud from water (d) gravel from fine sand
26. 26.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
27. 27.⚖️ 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
28. 28.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) sand and pebbles (d) yeast
29. 29.🧺 Which of these is not needed for the muddy water filter? (a) a balloon (b) a funnel (c) a clean glass (d) muddy water
30. 30.True or false: a mirror is needed for the muddy water filter. (a) False (b) True
31. 31.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) turmeric powder (c) sand and pebbles (d) yeast
32. 32.True or false: bran from wheat flour is done by winnowing. (a) True (b) False
33. 33.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) nothing (d) the water
34. 34.True or false: a clean glass is needed for the muddy water filter. (a) False (b) True
35. 35.True or false: gravel from fine sand is done by filtering. (a) False (b) True
36. 36.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) germs are invisible (c) clear water is salty (d) clear water is sweet
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) sand and pebbles (c) a funnel (d) a mirror
38. 38.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
39. 39.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) tea leaves from tea (c) sugar from sugar water (d) husk from rice grain
40. 40.True or false: sugar from sugar water is done by handpicking. (a) True (b) False

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