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Home » Science Experiments for Kids » How do birds fly?

How do birds fly?

Published: Aug 28, 2024 by Emma Vanstone · This post may contain affiliate links · Leave a Comment

Birds can fly because they have wings, a streamlined body, strong muscles and very light, hollow bones.

The bones of birds are very strong and adapted perfectly to flight. They have a dense, strong exterior and an interior strengthened with criss crossing ridges and webbing. The hollow interior isn’t just to reduce the weight of the bone. Bird bones are filled with air sacs which connect to thier respiratory system allowing oxygen exchange so the lungs of the bird have a constant supply of air for respiration. Birds are energetic creatures so have a high oxygen demand.

Science Activities for learning about Birds

Strong Hollow Bird Bone Science Experiment

This simple science activity demonstrates how strong a hollow bone shape can be.

You’ll need

Paper

Tape

Books

Paper plate

3 circular columns with a paper plate balanced on the top and a stack of books on top of that.

Instructions

Roll one piece of paper into a circular column, one into a triangle column and one into a square column.

paper folded into a circular column, square column and triangle column for a strong shape activity

Stand the circular column up first and place books on the top until it collapses. Repeat with the other two shapes using the same books in the same order.

You should find the circular column is the strongest, as it doesn’t have any edges so the weight is spread evenly through the column.

As an extension activity roll three circular columns and place the paper plate on top of them. Place books on the plate until the columns collapse.

Are you surprrsed how strong a basic hollow column is?

More bird themed science activities

Find out why birds have different shaped beaks with a simple sorting activity.

Help local birds survive the winer months by making a bird feeder.

Read more about the air sac system of birds.

Fun bird facts

Feathers allow birds to move smoothly through the air.

Hummingbirds beat their wings 50 times a second. As the wings move they make the humming noise that gives them their name.

A birds feathers are called its plumage.

Birds lay eggs in a nest to help keep them safe. The nests of the bald eagle can be up to 2.5 metres wide!

Woodpeckers peck at trees to get to small insects that live in the bark.

A woodpecker beak is strong enough to make a hole in the tree big enough for a nest.

Cuckoos lay thier eggs in other birds nests!

A skimmer has a beak shaped like scissors. This allows it to catch fish just below the surface of water.

Which birds don’t fly?

Some examples of birds that don’t fly are:

Ostriches

Penguins

Kiwis

Emus

Last Updated on August 28, 2024 by Emma Vanstone

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Safety Notice

Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

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