Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 500 · 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.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) clearer (c) muddier (d) salty
2. 2.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
3. 3.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
4. 4.True or false: mud from water is done by filtering. (a) False (b) True
5. 5.True or false: a battery cell is 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? True or false: the amount poured is what we measure. (a) False (b) True
7. 7.True or false: bran from wheat flour is done by sieving. (a) False (b) True
8. 8.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
9. 9.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a battery cell (c) a magnet (d) a funnel
10. 10.True or false: small stones from dal is done by winnowing. (a) True (b) False
11. 11.🫗 Which of these is done by winnowing? (a) bran from wheat flour (b) chaff from wheat grain (c) mud from water (d) tea leaves from tea
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a mirror (c) a battery cell (d) a magnet
13. 13.⚖️ 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 keep it the same (c) we change it
14. 14.True or false: turmeric powder is not needed for the muddy water filter. (a) False (b) True
15. 15.🫗 How do we separate sugar from sugar water? (a) filtering (b) sieving (c) winnowing (d) evaporating
16. 16.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) gravel from fine sand (c) small stones from dal (d) husk from rice grain
17. 17.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
18. 18.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the filter material (d) the same glass
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) both stay behind (c) leaves stay behind (d) tea stays behind
20. 20.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
21. 21.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
22. 22.🧺 Do we need a battery cell for the muddy water filter? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) yeast (d) a clean glass
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) sand and pebbles (c) muddy water (d) a balloon
25. 25.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) no, salt passes through (c) it turns to sugar (d) yes, all of it
27. 27.🫗 How do we separate salt from sea water? (a) sieving (b) filtering (c) evaporating (d) winnowing
28. 28.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) yes, if it is clear (c) yes, always (d) no, germs may stay
29. 29.🫗 Which of these is done by evaporating? (a) chaff from wheat grain (b) sugar from sugar water (c) bad grains from rice (d) husk from rice grain
30. 30.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) the mud (d) nothing
31. 31.True or false: salt from sea water is done by evaporating. (a) True (b) False
32. 32.True or false: husk from rice grain is done by winnowing. (a) False (b) True
33. 33.🛟 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
34. 34.🫗 Which of these is done by sieving? (a) bran from wheat flour (b) small stones from dal (c) bad grains from rice (d) sugar from sugar water
35. 35.⚖️ 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
36. 36.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) turmeric powder (d) sand and pebbles
37. 37.True or false: tea leaves from tea is done by filtering. (a) False (b) True
38. 38.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a magnet (c) muddy water (d) a clean glass
39. 39.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
40. 40.⚖️ 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

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