Grandpa, What Is Air? A Scientific Journey for Children Ages 4-8

Air: The Invisible Force That Surrounds Us

Young scientists, have you ever wondered about the invisible force that surrounds us all the time? That's air! It may seem like nothing, but air is a very important part of our lives. Without air, we wouldn't be able to breathe, talk, or even play!

Children's book “Grandpa, What is Air?” (Popular Science for Children Ages 4-8, Books’ Series 1)

by Daniel Levy

4 out of 5

Language	:	English
File size	:	1911 KB
Text-to-Speech	:	Enabled
Screen Reader	:	Supported
Enhanced typesetting	:	Enabled
Word Wise	:	Enabled
Print length	:	53 pages
Lending	:	Enabled

FREE

Air is made up of tiny particles called molecules. These molecules are so small that we can't see them, even with a microscope! Air molecules are mostly nitrogen (about 78%) and oxygen (about 21%). The rest of the air is made up of other gases, like argon, carbon dioxide, and water vapor.

Properties of Air

Air has some special properties that make it unique. For example, air is:

• Invisible: We can't see air, but we can see its effects, like when it makes leaves rustle or sails billow.
• Odorless: Air itself doesn't have a smell, but it can carry smells from other things, like flowers or food.
• Tasteless: Air doesn't have a taste either, but it can help us taste other things, like when we eat a juicy orange.
• Elastic: Air can be compressed, which means it can be squeezed into a smaller space. When you blow up a balloon, you're actually filling it with compressed air.
• Expansive: Air can also expand, which means it can spread out to fill a larger space. When you let go of a balloon, the air inside expands and the balloon flies away.

The Importance of Air

Air is essential for life on Earth. We need air to breathe, and plants need air to grow. Air also helps to protect us from the sun's harmful rays and keeps the Earth's temperature stable.

Here are some of the ways air is important:

• Breathing: We breathe in air to get oxygen, which our bodies use to create energy. When we breathe out, we release carbon dioxide, which plants use to make food.
• Plant growth: Plants need air to grow. They use the carbon dioxide in the air to make food, and they release oxygen as a byproduct.
• Protection: The Earth's atmosphere protects us from the sun's harmful ultraviolet (UV) rays. UV rays can cause skin cancer and other health problems.
• Temperature regulation: Air helps to keep the Earth's temperature stable. The atmosphere acts like a blanket, trapping heat during the day and releasing it at night.

Fun Facts About Air

Here are a few fun facts about air that you might not know:

• Air is about 1,000 times less dense than water.
• The air pressure at sea level is about 14.7 pounds per square inch (psi).
• The air in the atmosphere gets thinner as you go higher in altitude.
• Airplanes fly by using the lift created by the air flowing over their wings.
• Hot air balloons float because the hot air inside them is less dense than the cold air outside.

Air is a fascinating and essential part of our lives. It's invisible, odorless, and tasteless, but it's all around us. Air helps us breathe, plants grow, and protects us from the sun. So next time you take a deep breath of fresh air, remember that you're inhaling a whole world of tiny molecules that are essential for life on Earth.

Children's book “Grandpa, What is Air?” (Popular Science for Children Ages 4-8, Books’ Series 1)

by Daniel Levy

4 out of 5

Language	:	English
File size	:	1911 KB
Text-to-Speech	:	Enabled
Screen Reader	:	Supported
Enhanced typesetting	:	Enabled
Word Wise	:	Enabled
Print length	:	53 pages
Lending	:	Enabled

FREE