8. A Treat for Mosquitoes
Class 5 · Environmental Studies
3 ideas in Class 5 Environmental Studies, explained in plain words, with games and quizzes to practise.
Malaria and Finding Evidence
Part of: Mosquitoes and Health
The chapter explains that a laboratory test can find malaria parasites in a sample. It says malaria spreads through disease-carrying female Anopheles mosquitoes, not every mosquito. A scientist's observations connected tiny organisms in a patient's sample with similar organisms in a female mosquito.
Why it matters. Children can distinguish a disease test from a guess about where or when a bite happened, and can understand how observations support an explanation.
Try it in two minutes
- Compare a symptom with a laboratory result.
- Notice that not every mosquito carries malaria.
- Trace how a scientist compared observations under a microscope.
Try at home. Ask an adult how a laboratory test can help a doctor learn about an illness.
Anaemia and Iron in Food
Part of: Mosquitoes and Health
The chapter says a test showed Aarti had anaemia and that her haemoglobin reading was below the printed normal range. It explains that the doctor connected anaemia with low haemoglobin or iron and named jaggery, amla and green leafy vegetables as iron-containing foods. A later report shows her reading had increased.
Why it matters. Reading a report carefully helps children tell what a number says without trying to diagnose themselves or others.
Try it in two minutes
- Compare the reading with the range printed on the report.
- Calculate how much the later reading changed.
- Name the foods the doctor mentioned in the story.
Try at home. With an adult, read a food label or discuss foods a doctor has suggested for health. Do not use a story as a personal diagnosis.
Mosquito Larvae and Prevention
Part of: Mosquitoes and Health
The chapter explains that mosquitoes lay eggs in water and that larvae are young mosquitoes. A child finds thread-like larvae in water left for days in an old pot. The family empties, cleans and dries the pot, then keeps it upside down so water cannot collect. The poster also recommends keeping water pots, coolers and tanks clean and drying them weekly, and using mosquito nets.
Why it matters. Removing places where water collects can reduce places in which mosquitoes may lay eggs.
Try it in two minutes
- Trace how eggs in water become larvae.
- Identify the water source in the old-pot example.
- Name one step that stops water from collecting again.
Try at home. With an adult, check safe outdoor containers for standing water and ask the adult to empty or cover them appropriately.
What your child will practise
- Anaemia and Iron in Food: Candy Puzzle (Clue Puzzle)
- Anaemia and Iron in Food: Candy Quick Fire (Quick Fire)
- Malaria and Finding Evidence: Desert Quick Fire (Quick Fire)
- Malaria and Finding Evidence: Lab Explorer Quest (Collect the Answer)
- Mosquito Larvae and Prevention: Jungle Quest (Match It Up)
- Quiz: Anaemia and Iron in Food (8 questions)
- Quiz: Malaria and Finding Evidence (8 questions)
- Quiz: Mosquito Larvae and Prevention (8 questions)