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Animals - Growth from Babies to Adults
It's not only birds that lay eggs. Dinosaurs came from eggs too!

Animals - Growth from Babies to Adults

From tiny babies to strong adults, animals change in size, shape and skills. Explore how bodies, teeth and behaviour grow as part of KS1 Science learning.

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Fascinating Fact:

Teeth change. Some animals, and children too, lose baby teeth and grow adult teeth for stronger chewing.

In KS1 Science, children discover how animals grow from babies to adults. They learn that bodies, teeth, coats and behaviours can change so animals can eat better, move confidently and survive.

  • Baby: A young animal at the start of its life.
  • Adult: A fully grown animal that cannot grow taller but may still get stronger.
  • Life cycle: The stages an animal goes through from baby to adult.
What does animals growing from babies to adults mean in KS1 Science?

It means learning how animals start small and then change in size, shape and abilities as they grow into adults, often becoming stronger and more independent.

Do all animal babies look like their parents when they are grown up?

No. Some, like lambs and foals, become larger versions of their parents. Others, like tadpoles turning into frogs, change shape a lot as they grow.

How can I help KS1 children understand animal growth stages?

You can compare baby and adult photos, talk about size, teeth and fur changes, and order pictures to show each step from baby to grown-up.

1 .
This is a fossil. It is a dinosaur egg. Dinosaurs lived in the past. What type of animal was a dinosaur?
Bird
Fish
Mammal
Reptile
Baby dinosaurs hatched from eggs. Then they grew very, very big!
2 .
Chicks come from eggs. This chick has just left the egg. What do we call it when the chick leaves the egg?
Hatching
Sleeping
Turning
Waking
Have you ever seen a chick hatch from an egg?
3 .
What are ducklings when they grow up?
Chickens
Geese
Swans
Ducks
Ducks are very good swimmers
4 .
Where does the robin lay its eggs?
In a nest
On a leaf
On a rock
On the road
Robin eggs have blue shells
5 .
The picture shows a baby robin chick. It has just left the nest.

What is the missing word?

_____ → Chick → Robin
Hen
Egg
Nest
Baby
Robins turn red as they get older
6 .
What is the missing word?

Egg → _____ → Chicken
Hen
Duck
Goose
Chick
Older chickens are often called hens
7 .
A baby kangaroo is carried by its mother in a _____.
Basket
Cot
Buggy
Pouch
Baby kangaroos are called joeys
8 .
What do we call a baby goose?
Duckling
Chick
Gosling
Cygnet
Goslings are baby geese. Cygnets are baby swans
9 .
Birds lay eggs. So do reptiles. Which one of these animals is a reptile?
Tortoise
Hippopotamus
Rhinoceros
Crab
The giant tortoise can live to be very old
10 .
What do we call baby chickens?
Hens
Ducks
Chicks
Lambs
Have you ever held a chick in your hand?
You can find more about this topic by visiting BBC Bitesize - How do animals grow?

Author:  David Bland (Former Physics Teacher, KS1 Science & Geography Quiz Writer)

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