Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 634 · 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.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
2. 2.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
3. 3.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it dissolves (b) it turns to sand (c) it floats on top (d) it sinks to the bottom
4. 4.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
5. 5.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) yeast (c) a clean glass (d) a funnel
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a clean glass (c) a funnel (d) turmeric powder
7. 7.⚖️ 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 change it (b) we keep it the same (c) we measure it
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same glass (b) the same muddy water (c) how clear the water is (d) the amount poured
9. 9.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) lick your fingers (d) wipe hands on face
10. 10.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) sand and pebbles (d) a battery cell
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a magnet (c) muddy water (d) turmeric powder
12. 12.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
13. 13.🧺 Do we need sand and pebbles for the muddy water filter? (a) not needed (b) needed
14. 14.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) muddy water (c) a funnel (d) a magnet
16. 16.True or false: bad grains from rice is done by handpicking. (a) False (b) True
17. 17.True or false: bran from wheat flour is done by sieving. (a) True (b) False
18. 18.⚖️ 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
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) leaves pass through (c) both stay behind (d) leaves stay behind
20. 20.🫗 How do we separate sugar from sugar water? (a) handpicking (b) winnowing (c) evaporating (d) filtering
21. 21.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🔮 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) yes, all of it (d) no, salt passes through
23. 23.True or false: a mirror is not needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
25. 25.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) husk from rice grain (c) gravel from fine sand (d) mud from water
26. 26.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
27. 27.⚖️ 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
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.True or false: bran from wheat flour is done by filtering. (a) False (b) True
30. 30.True or false: husk from rice grain is done by winnowing. (a) False (b) True
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a mirror (c) muddy water (d) a funnel
32. 32.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
33. 33.🫗 Which of these is done by filtering? (a) tea leaves from tea (b) bad grains from rice (c) small stones from dal (d) salt from sea water
34. 34.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) no, germs may stay (d) yes, if it is cold
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the amount poured (b) the same funnel (c) how clear the water is (d) the filter material
36. 36.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.⚖️ 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
38. 38.🫗 Which of these is done by evaporating? (a) small stones from dal (b) bad grains from rice (c) gravel from fine sand (d) salt from sea water
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we keep it the same (b) we measure it (c) we change it
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the filter material is what we measure. (a) True (b) False

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