Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 225 · 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.🛟 Why should you never drink water just because it looks clear? (a) clear water is hot (b) clear water is sweet (c) clear water is salty (d) germs are invisible
2. 2.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) both stay behind (b) leaves stay behind (c) leaves pass through (d) tea stays behind
3. 3.🔮 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) yes, all of it (d) no, salt passes through
4. 4.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a magnet (b) a clean glass (c) sand and pebbles (d) a funnel
7. 7.🫗 How do we separate husk from rice grain? (a) sieving (b) filtering (c) evaporating (d) winnowing
8. 8.⚖️ 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
9. 9.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the water (c) nothing (d) the mud
10. 10.🧺 Do we need cotton or cloth for the muddy water filter? (a) not needed (b) needed
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a balloon (c) a clean glass (d) muddy water
12. 12.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
13. 13.🫗 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
14. 14.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) a funnel (c) muddy water (d) a magnet
15. 15.True or false: bad grains from rice is done by handpicking. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.True or false: a funnel is not needed for the muddy water filter. (a) True (b) False
18. 18.⚖️ 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
19. 19.⚖️ 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 funnel
20. 20.🛟 What should you do after handling muddy water? (a) nothing is needed (b) lick your fingers (c) wipe hands on face (d) wash hands afterwards
21. 21.True or false: a clean glass is not needed for the muddy water filter. (a) True (b) False
22. 22.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) sand and pebbles (c) a magnet (d) a balloon
23. 23.⚖️ 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 measure it (c) we change it
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) sand and pebbles (d) yeast
25. 25.🧺 Which of these is not needed for the muddy water filter? (a) a clean glass (b) cotton or cloth (c) a mirror (d) sand and pebbles
26. 26.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) True (b) False
28. 28.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the filter material (b) the amount poured (c) the same muddy water (d) how clear the water is
29. 29.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) turmeric powder (d) sand and pebbles
30. 30.True or false: sugar from sugar water is done by handpicking. (a) True (b) False
31. 31.True or false: mud from water is done by sieving. (a) True (b) False
32. 32.True or false: yeast is not needed for the muddy water filter. (a) False (b) True
33. 33.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) sand and pebbles (c) yeast (d) a clean glass
34. 34.🔮 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
35. 35.🧺 Do we need a magnet for the muddy water filter? (a) not needed (b) needed
36. 36.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a funnel (c) yeast (d) turmeric powder
37. 37.⚖️ 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 funnel (b) the amount poured (c) the same muddy water (d) the filter material
38. 38.🫗 Which of these is done by filtering? (a) mud from water (b) bad grains from rice (c) gravel from fine sand (d) small stones from dal
39. 39.🫗 Is filtered pond water safe to drink? (a) no, germs may stay (b) yes, always (c) yes, if it is cold (d) yes, if it is clear
40. 40.🫗 Which of these is done by handpicking? (a) sugar from sugar water (b) chaff from wheat grain (c) small stones from dal (d) tea leaves from tea

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