Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 775 · 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) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
2. 2.True or false: mud from water is done by filtering. (a) True (b) False
3. 3.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) clear water is hot (c) germs are invisible (d) clear water is salty
4. 4.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) a funnel (c) a mirror (d) turmeric powder
6. 6.🫗 Which of these is done by winnowing? (a) gravel from fine sand (b) husk from rice grain (c) small stones from dal (d) bran from wheat flour
7. 7.True or false: gravel from fine sand is done by evaporating. (a) False (b) True
8. 8.🧺 Do we need a balloon for the muddy water filter? (a) not needed (b) needed
9. 9.🫗 How do we separate salt from sea water? (a) handpicking (b) evaporating (c) winnowing (d) sieving
10. 10.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
11. 11.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
12. 12.⚖️ 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
13. 13.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🫗 Which of these is done by evaporating? (a) mud from water (b) chaff from wheat grain (c) salt from sea water (d) husk from rice grain
16. 16.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
17. 17.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
18. 18.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) salty (c) hot (d) clearer
19. 19.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) tea stays behind (b) both stay behind (c) leaves pass through (d) leaves stay behind
20. 20.⚖️ 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 amount poured
21. 21.True or false: a funnel is needed for the muddy water filter. (a) False (b) True
22. 22.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a battery cell (c) muddy water (d) a funnel
23. 23.⚖️ 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 same glass (d) the filter material
24. 24.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the salt (c) the water (d) the mud
25. 25.🫗 How do we separate chaff from wheat grain? (a) filtering (b) sieving (c) evaporating (d) winnowing
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a magnet (b) sand and pebbles (c) turmeric powder (d) a balloon
27. 27.🫗 Which of these is done by filtering? (a) salt from sea water (b) bad grains from rice (c) sugar from sugar water (d) mud from water
28. 28.🫗 Which of these is done by sieving? (a) sugar from sugar water (b) gravel from fine sand (c) bad grains from rice (d) tea leaves from tea
29. 29.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
30. 30.⚖️ 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
31. 31.True or false: tea leaves from tea is done by filtering. (a) True (b) False
32. 32.🧺 Which of these is needed for the muddy water filter? (a) turmeric powder (b) a clean glass (c) a mirror (d) a balloon
33. 33.🫗 Which of these is done by filtering? (a) gravel from fine sand (b) sugar from sugar water (c) tea leaves from tea (d) chaff from wheat grain
34. 34.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it turns to sand (c) it floats on top (d) it dissolves
35. 35.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) yeast (d) cotton or cloth
36. 36.🫗 Is filtered pond water safe to drink? (a) yes, always (b) yes, if it is clear (c) yes, if it is cold (d) no, germs may stay
37. 37.🧺 Which of these is needed for the muddy water filter? (a) muddy water (b) a balloon (c) turmeric powder (d) a magnet
38. 38.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
39. 39.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the filter traps mud (d) the water evaporates
40. 40.True or false: sand and pebbles is not needed for the muddy water filter. (a) True (b) False

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