New Exam Prep
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New Exam Prep
Sample questions with model answers
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A carpenter accidentally drops iron nails into a pile of sawdust. Advit and Kiara help him using a magnet. If the carpenter had mistakenly used plastic screws instead of iron nails, would this method still work? Why or why not? What alternative method could be used then?
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No, the magnet won't attract plastic screws; an alternative method is manual separation.
The full exam-length answer is in the app.
Explain the role of threshers in everyday life.
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Threshers separate grains from the harvested crops efficiently.
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Differentiate between sedimentation and decantation. Give 2 points.
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Sedimentation is the process of settling, while decantation is the process of pouring off the liquid.
The full exam-length answer is in the app.
You are given with the mixture of salt solution containing pulses and mud. How will you separate all the components?
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Use filtration to separate mud, then evaporate the salt solution to recover salt.
The full exam-length answer is in the app.
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