Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 851 · 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 muddy water for the muddy water filter? (a) needed (b) not needed
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the water (c) the salt (d) the mud
3. 3.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
4. 4.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) a battery cell (d) muddy water
5. 5.⚖️ 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 muddy water (b) the same glass (c) how clear the water is (d) the filter material
6. 6.🫗 Which of these is done by filtering? (a) chaff from wheat grain (b) gravel from fine sand (c) bad grains from rice (d) tea leaves from tea
7. 7.🔮 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
8. 8.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) yeast (c) a clean glass (d) a mirror
9. 9.🛟 What should you do after handling muddy water? (a) lick your fingers (b) nothing is needed (c) wipe hands on face (d) wash hands afterwards
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is kept the same. (a) False (b) True
11. 11.⚖️ 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 change it (c) we measure it
12. 12.🫗 How do we separate bran from wheat flour? (a) evaporating (b) handpicking (c) sieving (d) winnowing
13. 13.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it turns to sand (b) it sinks to the bottom (c) it floats on top (d) it dissolves
14. 14.True or false: bran from wheat flour is done by sieving. (a) False (b) True
15. 15.True or false: tea leaves from tea is done by handpicking. (a) False (b) True
16. 16.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) tea leaves from tea (c) sugar from sugar water (d) gravel from fine sand
17. 17.True or false: cotton or cloth is needed for the muddy water filter. (a) False (b) True
18. 18.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is clear (d) yes, if it is cold
19. 19.🫗 Which of these is done by filtering? (a) bad grains from rice (b) mud from water (c) salt from sea water (d) chaff from wheat grain
20. 20.True or false: bad grains from rice is done by handpicking. (a) False (b) True
21. 21.🫗 Why does filtered muddy water look clearer? (a) the water evaporates (b) the mud dissolves (c) the filter adds soap (d) the filter traps mud
22. 22.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) germs are invisible (d) clear water is hot
23. 23.True or false: husk from rice grain is done by winnowing. (a) True (b) False
24. 24.🧺 Which of these is needed for the muddy water filter? (a) cotton or cloth (b) a mirror (c) a magnet (d) yeast
25. 25.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a funnel (d) a balloon
26. 26.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves stay behind (b) leaves pass through (c) tea stays behind (d) both stay behind
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (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 glass”? (a) we keep it the same (b) we change it (c) we measure it
29. 29.⚖️ 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
30. 30.⚖️ 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
31. 31.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sand (c) yes, all of it (d) it turns to sugar
32. 32.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
33. 33.True or false: chaff from wheat grain is done by winnowing. (a) True (b) False
34. 34.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) salt from sea water (c) bran from wheat flour (d) husk from rice grain
35. 35.🫗 How do we separate mud from water? (a) filtering (b) handpicking (c) evaporating (d) winnowing
36. 36.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
37. 37.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) False (b) True
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) yeast (b) cotton or cloth (c) muddy water (d) a clean glass
39. 39.⚖️ 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 same muddy water
40. 40.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids