Page 28 - ACTIVE SCIENCE 4 TOC

4. What do you understand by albumen?
5. What is an embryo?

6. Define metamorphosis.

H. Long Answer Questions.

1. Explain the life cycle of a butterfly.
2. Write a note on reproduction in a frog.

3. What are mammals? Enlist any two characteristics.

4. Differentiate between oviparous and viviparous animals.

I. Show with the help of a diagram.

1. Structure of an egg. Net Work
2. Life cycle of a butterfly. • To see video of life cycle of a butterfly, log

on to https://www.youtube.com watch?v=
7AUeM8MbaIk
Think Hard

1. Do all the young ones resemble their parents? Why or why not?

2. Mammals like fish, whales, etc., leave their young ones on their own. Why?

Project Work

Prepare a clay model of the different life stages of a butterfly to make its life
cycle.

Life Skills Activity

Take a chart paper and divide it into two parts. Paste the pictures of animals that lay

eggs on one side and animals that give birth to their young ones on the other side. Find
out about how many take care of their young ones.

Research and Development

Suppose a cat in your house gives birth to its young ones. You have to observe how the
cat is looking after its kittens. Find out more ways on how to take care of the kittens.

Field Trip

Look around a park or garden. Spot as many insects as you can. Identify the life stage of

the different insects.

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Active Science-4