Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 794 · 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.True or false: a battery cell is not needed for the muddy water filter. (a) True (b) False
2. 2.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
3. 3.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
4. 4.🫗 How do we separate bran from wheat flour? (a) winnowing (b) sieving (c) evaporating (d) handpicking
5. 5.🫗 How do we separate chaff from wheat grain? (a) sieving (b) handpicking (c) winnowing (d) filtering
6. 6.True or false: turmeric powder is needed for the muddy water filter. (a) True (b) False
7. 7.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) clearer (d) salty
8. 8.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
9. 9.🫗 Which of these is done by winnowing? (a) salt from sea water (b) husk from rice grain (c) mud from water (d) tea leaves from tea
10. 10.🫗 How do we separate bad grains from rice? (a) filtering (b) winnowing (c) handpicking (d) evaporating
11. 11.True or false: mud from water is done by sieving. (a) False (b) True
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
14. 14.🧺 Do we need turmeric powder for the muddy water filter? (a) not needed (b) needed
15. 15.True or false: muddy water is not needed for the muddy water filter. (a) False (b) True
16. 16.⚖️ 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 keep it the same (b) we change it (c) we measure it
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 amount poured
18. 18.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
19. 19.🫗 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
20. 20.🧺 Which of these is not needed for the muddy water filter? (a) yeast (b) cotton or cloth (c) muddy water (d) sand and pebbles
21. 21.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
22. 22.🫗 Why does filtered muddy water look clearer? (a) the filter traps mud (b) the filter adds soap (c) the mud dissolves (d) the water evaporates
23. 23.True or false: turmeric powder is not needed for the muddy water filter. (a) True (b) False
24. 24.🧺 Do we need a clean glass for the muddy water filter? (a) not needed (b) needed
25. 25.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a magnet (c) a mirror (d) a battery cell
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) turmeric powder (c) muddy water (d) a funnel
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.True or false: tea leaves from tea is done by filtering. (a) True (b) False
29. 29.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
30. 30.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) muddy water (d) a clean glass
31. 31.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) no, salt passes through (d) yes, all of it
32. 32.🧺 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 balloon (d) muddy water
33. 33.🧺 Which of these is needed for the muddy water filter? (a) a clean glass (b) a magnet (c) a battery cell (d) a balloon
34. 34.🫗 Which of these is done by handpicking? (a) mud from water (b) husk from rice grain (c) bad grains from rice (d) bran from wheat flour
35. 35.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
36. 36.True or false: bad grains from rice is done by winnowing. (a) False (b) True
37. 37.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
38. 38.🫗 How do we separate mud from water? (a) handpicking (b) evaporating (c) filtering (d) sieving
39. 39.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False
40. 40.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True

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