Grade 6 Science & Technology · Strand 1: Living things and the Environment · Fungi
Safety Precautions and Waste Disposal
A short Grade 6 Science & Technology lesson for the CBE curriculum, part of Living things and the Environment: Fungi. Learn it on any phone with notes and slides, then check yourself with a quick quiz and earn XP. This lesson is free.
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1. Why is it unsafe to cook and eat maize that has grown mould, even after wiping off the visible mould?
- A. Aflatoxins can soak into the grain and are not destroyed by cooking
- B. The maize will lose all its colour when boiled
- C. Mould makes maize too hard to chew
- D. Cooking turns the mould into bacteria
2. Which of the following is the best way to store maize after harvest to prevent aflatoxin formation?
- A. Store damp maize in closed bags on the floor
- B. Dry the maize well in the sun and store the bags on raised wooden pallets
- C. Wet the maize so it stays fresh
- D. Keep the maize in a warm, damp room
3. Why must you never open a plastic bag containing a cultivated mould colony in the classroom?
- A. Opening the bag immediately kills the mould
- B. It could release millions of airborne spores that may cause allergies and breathing problems
- C. It makes the mould turn into a liquid
- D. It makes the bread fresh again
4. Wanjiru finds a mushroom growing on a dead log in the school compound. What should she do?
- A. Taste a tiny piece to check if it is edible
- B. Pick it with bare hands and smell it closely
- C. Sketch or photograph it and not taste it
- D. Cook it for the class to eat
5. Name the poisonous substance produced by Aspergillus mould on damp maize and groundnuts.
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