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Birth and growth

Background

Different plants and animals take birth in different ways. Some plants grow from seeds. Some grow out of bulbs or cuttings or other parts such as leaves. Some animals give birth to young ones. Some animals lay eggs and young ones hatch from eggs. The young are sometimes very different from the adults, as for example the butterfly or a newly sprouting bean plant. Sometimes the young look similar to the adults, but also have many differences. The growth of each living being is unique. 

Aim

Recognise that living things take birth and grow.

Recognise that the growth pattern is not the same for all living beings.

Realise that the young can be like the adult in some cases.

Realise that the young can look different from the adult in some cases. 

Activities

Observe the young ones of different animals and plants. How are they different from their parents? Draw pictures to show the differences.

Plant some Bengal gram seeds (or rajma seeds) in small cups. Water the cups regularly. Observe it every day and record your observations. What changes do you observe after 1 day; 2 days; and so on till 10 days?

Collect some seeds and grams. Place them on a stack of moist newspapers. Make sure that the papers remain moist. Do the seeds grow into small plants? How many of them will grow? Keep a record of how many days it takes for the seeds to germinate. Which seeds germinate early? Which seeds take time to germinate?

Take some curds in a saucer and leave it exposed for a few days. If you observe carefully, you will notice some insects visiting it. Find out what insects they are. Observe the curds regularly and note down what you see. How do you account for what you see?

Make a list of plants you see in your neighbourhood. Which are the plants that grew from seeds? Which from parts of the mother plant. Observe their growth. How are the young plants different from the older ones? How are they similar?

Make a list of animals you see around you. Which are the ones that hatched from eggs? Which are the ones that were born as young ones? Observe these animals in different stages of their growth. How are they different from their parents? How are they similar?

Look for eggs of some animals. These could be cockroaches, ants, lizards, birds, etc. Where do you find these eggs? Observe them regularly and notice how they hatch. Do the young hatchlings look like their parents?

Fill a glass bottle with rice (This is best done during monsoons). Make tiny holes for air to get in. Observe the contents of the bottle regularly. Do you notice some insects after a few days? Isolate some insects and take them out into another bottle. Also add some grains of rice. Observe the insects regularly? Can you spot some eggs or young ones of these insects?

Leave a bottle of water in the open for a few days. You will notice some wriggling creatures in it. Close the bottle with a paper lid and make tiny pinholes for air to get in. Observe the creatures regularly and record what you see.

Related Questions

In what ways are you different from your parents? In what ways are you different from a newborn baby?

As plants and animals grow, will they keep changing in the way they look? What about full-grown trees? What about tiny grass?

How fast are you growing? Look at your photographs taken at various points of time. For example when you were a baby, 1year old, 2year old etc. Can you estimate how tall you have grown or how heavy you have grown?

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