Separating Mixtures Experiment Worksheet

Science experiments lesson 19: Separating mixtures: filter muddy water · Set 563 · 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 does filtered muddy water look clearer? (a) the filter adds soap (b) the mud dissolves (c) the water evaporates (d) the filter traps mud
2. 2.⚖️ 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 measure it (b) we change it (c) we keep it the same
3. 3.🛟 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
4. 4.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) no, salt passes through (b) yes, all of it (c) it turns to sugar (d) it turns to sand
5. 5.🔮 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
6. 6.🧺 Do we need yeast for the muddy water filter? (a) needed (b) not needed
7. 7.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a clean glass (c) sand and pebbles (d) a magnet
8. 8.True or false: mud from water is done by winnowing. (a) True (b) False
9. 9.True or false: a magnet is needed for the muddy water filter. (a) True (b) False
10. 10.True or false: a balloon is needed for the muddy water filter. (a) False (b) True
11. 11.⚖️ 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 filter material (c) the amount poured (d) the same glass
12. 12.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same funnel (b) how clear the water is (c) the same muddy water (d) the amount poured
13. 13.⚖️ 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) False (b) True
14. 14.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is what we measure. (a) False (b) True
15. 15.True or false: a magnet is not needed for the muddy water filter. (a) True (b) False
16. 16.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) how clear the water is (b) the same glass (c) the filter material
17. 17.🧺 Which of these is needed for the muddy water filter? (a) a balloon (b) a mirror (c) a funnel (d) yeast
18. 18.🫗 Which of these is done by evaporating? (a) bad grains from rice (b) gravel from fine sand (c) small stones from dal (d) salt from sea water
19. 19.🫗 Which of these is done by winnowing? (a) sugar from sugar water (b) small stones from dal (c) mud from water (d) husk from rice grain
20. 20.🧺 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 funnel
21. 21.True or false: turmeric powder is not 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) sand and pebbles (b) muddy water (c) a clean glass (d) a magnet
23. 23.🧺 Do we need cotton or cloth for the muddy water filter? (a) needed (b) not needed
24. 24.⚖️ 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
25. 25.🧺 Do we need a mirror for the muddy water filter? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) a mirror (d) sand and pebbles
27. 27.True or false: muddy water is needed for the muddy water filter. (a) True (b) False
28. 28.🛟 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
29. 29.⚖️ 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 muddy water (c) how clear the water is
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a clean glass (c) cotton or cloth (d) a balloon
31. 31.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same muddy water is the one thing we change. (a) False (b) True
32. 32.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a battery cell (b) cotton or cloth (c) a funnel (d) sand and pebbles
33. 33.🫗 How do we separate chaff from wheat grain? (a) filtering (b) winnowing (c) sieving (d) evaporating
34. 34.⚖️ 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
35. 35.⚖️ 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
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the filter material”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it floats on top (b) it dissolves (c) it turns to sand (d) it sinks to the bottom
40. 40.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is the one thing we change. (a) True (b) False

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