Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 578 · 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.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wipe hands on face (c) wash hands afterwards (d) lick your fingers
2. 2.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a funnel (d) a balloon
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) how clear the water is (b) the same muddy water (c) the filter material (d) the same glass
4. 4.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) yeast (c) turmeric powder (d) a funnel
5. 5.🫗 Which of these is done by evaporating? (a) small stones from dal (b) husk from rice grain (c) gravel from fine sand (d) salt from sea water
6. 6.🫗 How do we separate bran from wheat flour? (a) handpicking (b) evaporating (c) sieving (d) winnowing
7. 7.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the same glass (c) how clear the water is (d) the amount poured
8. 8.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it dissolves (c) it floats on top (d) it sinks to the bottom
9. 9.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we keep it the same (c) we change it
11. 11.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
12. 12.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
13. 13.🔮 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
14. 14.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) germs are invisible (c) clear water is hot (d) clear water is sweet
15. 15.🫗 How do we separate gravel from fine sand? (a) winnowing (b) filtering (c) handpicking (d) sieving
16. 16.⚖️ 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
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.🫗 Is filtered pond water safe to drink? (a) yes, always (b) no, germs may stay (c) yes, if it is clear (d) yes, if it is cold
19. 19.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
20. 20.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) husk from rice grain (c) tea leaves from tea (d) bran from wheat flour
21. 21.True or false: tea leaves from tea is done by evaporating. (a) True (b) False
22. 22.🫗 Which of these is done by filtering? (a) salt from sea water (b) sugar from sugar water (c) tea leaves from tea (d) chaff from wheat grain
23. 23.🫗 Which of these is done by handpicking? (a) tea leaves from tea (b) salt from sea water (c) small stones from dal (d) mud from water
24. 24.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
25. 25.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) the mud (d) nothing
26. 26.🫗 How do we separate tea leaves from tea? (a) evaporating (b) filtering (c) sieving (d) winnowing
27. 27.⚖️ 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
28. 28.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) sand and pebbles (d) a clean glass
31. 31.True or false: chaff from wheat grain is done by winnowing. (a) False (b) True
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a battery cell (d) sand and pebbles
33. 33.⚖️ 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
34. 34.True or false: gravel from fine sand is done by sieving. (a) False (b) True
35. 35.⚖️ 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
36. 36.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) turmeric powder (d) muddy water
37. 37.True or false: turmeric powder is needed for the muddy water filter. (a) False (b) True
38. 38.True or false: mud from water is done by handpicking. (a) False (b) True
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) True (b) False
40. 40.True or false: salt from sea water is done by filtering. (a) True (b) False

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