Page 56 - Active Science 5 Ebook and Activity

d. Deficiency of Vitamin D: The
deficiency of this vitamin causes

deformities in the bones which results
in bowed legs, called rickets. This Vitamin D-rich foods
vitamin is synthesized by the skin
when we sit in the morning sun. Butter, Factual Study

ghee, groundnut oil, eggs and meat are Most vitamins are destroyed Rickets
rich in vitamin D. by over cooking. So this
should be avoided.

Let’s Recapitulate

Complete the sentences.

1. Beriberi is caused due to ______________________.
2. Night blindness is caused due to ______________________.

3. Rickets is caused due to ______________________.
4. Scurvy is caused due to______________________.

3. Deficiency of Minerals: Green and leafy
vegetables provide various minerals to us.

Iron, calcium and iodine are important
minerals for our body. Deficiency of iron
in diet causes anaemia. Deficiency of

calcium causes weakening of bones
and teeth. Deficiency of iodine causes
goitre (an enlargement of neck region). Mineral-rich food Goitre

Activity 4.4

Visit an MCD school in a slum area with your teacher and explain to the students about the
deficiency diseases, their symptoms and precautions.

Take, along with you, two types of cards:
• Cards with names of diseases and symptoms

• Cards with precautions against each disease

Then, give the cards to the students there and tell them to match the cards.

Let’s Pronounce Together

communicable contaminates ventilated insecticides
immunization tuberculosis nutrients carbohydrates
roughage malnutrition nourishment deficiency deformities

56 Active Science-5