Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 264 · 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.⚖️ 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 same muddy water (c) the filter material (d) the same glass
2. 2.🛟 Why should you never drink water just because it looks clear? (a) clear water is salty (b) clear water is sweet (c) clear water is hot (d) germs are invisible
3. 3.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) True (b) False
4. 4.⚖️ 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
5. 5.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) hot (b) muddier (c) salty (d) clearer
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) cotton or cloth (d) a magnet
7. 7.🧺 Do we need a balloon for the muddy water filter? (a) needed (b) not needed
8. 8.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is what we measure. (a) False (b) True
9. 9.⚖️ 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
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we measure it (b) we change it (c) we keep it the same
11. 11.🧺 Which of these is needed for the muddy water filter? (a) a battery cell (b) a balloon (c) muddy water (d) a mirror
12. 12.🧺 Do we need a magnet for the muddy water filter? (a) needed (b) not needed
13. 13.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) how clear the water is (b) the amount poured (c) the filter material (d) the same muddy water
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the amount poured”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🫗 How do we separate gravel from fine sand? (a) handpicking (b) sieving (c) filtering (d) winnowing
16. 16.True or false: cotton or cloth is needed for the muddy water filter. (a) True (b) False
17. 17.🧺 Do we need yeast for the muddy water filter? (a) not needed (b) needed
18. 18.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
19. 19.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
20. 20.🫗 Which of these is done by sieving? (a) gravel from fine sand (b) small stones from dal (c) bad grains from rice (d) sugar from sugar water
21. 21.🫗 Which of these is done by winnowing? (a) salt from sea water (b) bad grains from rice (c) small stones from dal (d) husk from rice grain
22. 22.🫗 Which of these is done by handpicking? (a) small stones from dal (b) husk from rice grain (c) chaff from wheat grain (d) gravel from fine sand
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 change it (c) we measure it
24. 24.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is what we measure. (a) False (b) True
26. 26.🫗 Which of these is done by filtering? (a) small stones from dal (b) chaff from wheat grain (c) tea leaves from tea (d) sugar from sugar water
27. 27.⚖️ 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
28. 28.🧺 Do we need a funnel for the muddy water filter? (a) not needed (b) needed
29. 29.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) yes, all of it (b) it turns to sugar (c) no, salt passes through (d) it turns to sand
30. 30.True or false: yeast is needed for the muddy water filter. (a) False (b) True
31. 31.🫗 How do we separate chaff from wheat grain? (a) winnowing (b) handpicking (c) filtering (d) evaporating
32. 32.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
33. 33.True or false: gravel from fine sand is done by sieving. (a) False (b) True
34. 34.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) sand and pebbles (c) a battery cell (d) a funnel
36. 36.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the salt (b) the mud (c) the water (d) nothing
37. 37.🫗 How do we separate small stones from dal? (a) filtering (b) evaporating (c) winnowing (d) handpicking
38. 38.True or false: mud from water is done by winnowing. (a) True (b) False
39. 39.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) muddy water (c) cotton or cloth (d) turmeric powder
40. 40.True or false: a battery cell is needed for the muddy water filter. (a) False (b) True

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