CBSE Class 5 EVS Treat For Mosquitoes Worksheet

Q 2) A patient is suffering from soft bones, bow legs, pale face and weakness. Suppose you are a doctor, so identify the disease and write the following observations.
Name of disease
Caused by
Preventive measures
Answer: Name of disease: Rickets (due to soft bones/bow legs) and Anaemia (due to pale face and weakness).
Caused by: Deficiency of Vitamin D (for rickets) and deficiency of iron in the diet (for anaemia).
Preventive measures: Eat iron-rich foods like green leafy vegetables, jaggery, apples, and spend time in sunlight while consuming milk and dairy products rich in Vitamin D and calcium.
In simple words: Weak bones and pale skin happen when the body lacks essential nutrients like iron and vitamins.
Exam Tip: Always link deficiency symptoms directly to the lack of specific nutrients and vitamins.

Q 3) Write the common features between housefly and butterfly.
Answer: 1. Both are insects belonging to the phylum Arthropoda.
2. Both have a three-part body structure (head, thorax, and abdomen).
3. Both possess wings and jointed legs.
In simple words: Houseflies and butterflies share basic insect features like wings and a segmented body.

Exam Tip: Remember that all insects share common features such as having six legs and three main body parts.

Q 4) Write the common features between mosquito and housefly
Answer: 1. Both are small flying insects that act as carriers (vectors) of diseases.
2. Both undergo complete metamorphosis (egg, larva, pupa, adult).
3. Both have mouthparts adapted for piercing or sponging liquid food.
In simple words: Both mosquitoes and houseflies spread germs and fly around dirty places.

Exam Tip: Emphasize that both insects are common household pests and disease vectors.

Q 5) What is difference between typhoid and anaemia
Answer: Typhoid: It is a water-borne bacterial infection caused by Salmonella typhi, characterized by high fever, stomach pain, and weakness.
Anaemia: It is a nutritional deficiency disorder caused by a lack of iron in the blood, characterized by paleness, fatigue, and low hemoglobin levels.
In simple words: Typhoid is an infection caused by dirty water or food, while anaemia is caused by a lack of iron in the body.

Exam Tip: Clearly differentiate between infectious diseases (caused by germs) and deficiency diseases (caused by lack of nutrients).

Q 6) An insect has two pairs of thorasic wings, six pairs of thorasic legs and has long proboscis. Identify the type of insect and write its two characteristic features.
Name
Two characteristic features
1)
2)
Answer: Name: Butterfly / Moth (or nectar-feeding flying insect)
Two characteristic features:
1) Possesses a long, coiled tube-like mouthpart called a proboscis to suck nectar from flowers.
2) Has broad, colorful wings covered with tiny scales.
In simple words: Butterflies use a long straw-like mouth to drink sweet nectar from flowers.

Exam Tip: Note that the proboscis is a specialized feeding organ found in butterflies and mosquitoes.