Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 510 · 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 balloon is needed for the muddy water filter. (a) False (b) True
2. 2.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) nothing (c) the mud (d) the water
3. 3.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) it turns to sugar (c) it turns to sand (d) yes, all of it
4. 4.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) cotton or cloth (c) sand and pebbles (d) a balloon
5. 5.True or false: bran from wheat flour is done by sieving. (a) True (b) False
6. 6.True or false: tea leaves from tea is done by sieving. (a) True (b) False
7. 7.🫗 Why does filtered muddy water look clearer? (a) the filter adds soap (b) the water evaporates (c) the mud dissolves (d) the filter traps mud
8. 8.True or false: sand and pebbles is not needed for the muddy water filter. (a) False (b) True
9. 9.🛟 What should you do after handling muddy water? (a) nothing is needed (b) wash hands afterwards (c) wipe hands on face (d) lick your fingers
10. 10.🛟 Why should you never drink water just because it looks clear? (a) clear water is sweet (b) germs are invisible (c) clear water is hot (d) clear water is salty
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.True or false: small stones from dal is done by handpicking. (a) False (b) True
13. 13.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a magnet (d) sand and pebbles
14. 14.🫗 Which of these is done by sieving? (a) chaff from wheat grain (b) mud from water (c) bran from wheat flour (d) tea leaves from tea
15. 15.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) muddy water (d) sand and pebbles
16. 16.🫗 Is filtered pond water safe to drink? (a) yes, if it is clear (b) yes, always (c) yes, if it is cold (d) no, germs may stay
17. 17.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is kept the same. (a) True (b) False
20. 20.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) cotton or cloth (c) a battery cell (d) a clean glass
21. 21.⚖️ 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 muddy water (c) the filter material (d) the same funnel
22. 22.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bad grains from rice (c) sugar from sugar water (d) chaff from wheat grain
23. 23.🫗 How do we separate bad grains from rice? (a) filtering (b) handpicking (c) evaporating (d) sieving
24. 24.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we change it (b) we measure it (c) we keep it the same
25. 25.🫗 How do we separate bran from wheat flour? (a) sieving (b) filtering (c) winnowing (d) evaporating
26. 26.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
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) False (b) True
28. 28.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) tea stays behind (c) leaves stay behind (d) leaves pass through
29. 29.⚖️ 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) False (b) True
30. 30.⚖️ 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) the same funnel (c) how clear the water is
31. 31.🧺 Which of these is needed for the muddy water filter? (a) sand and pebbles (b) a battery cell (c) yeast (d) turmeric powder
32. 32.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
33. 33.🫗 Which of these is done by evaporating? (a) husk from rice grain (b) tea leaves from tea (c) gravel from fine sand (d) sugar from sugar water
34. 34.⚖️ 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) the amount poured (c) how clear the water is
35. 35.⚖️ 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 measure it (c) we keep it the same
36. 36.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
37. 37.True or false: salt from sea water is done by evaporating. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same muddy water”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) True (b) False
40. 40.True or false: tea leaves from tea is done by handpicking. (a) False (b) True

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