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Science

The Sun, Moon & Stars

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One million Earths could fit inside the Sun!  The Sun or Sol, is the star at the center of our solar system and is responsible for the Earth’s climate and weather. The Sun is an almost perfect sphere.  If a hollow Sun was filled up with spherical Earths then around 960,000 would fit inside.  The Sun’s surface area is 11,990 times bigger than that of the Earth’s. 

 

To learn more about The Sun, Moon and Stars, click on the links below.

 

Discovery Education

NASA

Scientific American

Smithsonian

Space.com

Space Facts

Living Systems

Did you know that the human heart weighs between 7 and 15 ounces and is a little larger than the size of your fist?  By the end of a long life, a person's heart may have beat (expanded and contracted) more than 3.5 billion times.  In fact, each day, the average heart beats 100,000 times, pumping about 2,000 gallons of blood.

 

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To learn more about living systems, click on the links below.

 

Circulatory System

Respiratory System

Digestive System

Excretory System

American Heart Association

The Circulatory System (video)

Human Heart Facts

The Mysterious Human Heart

The Texas Heart Institute

 

Digestive System (video)

Human Digestive System

Your Digestive System

 

 

 

Dinosaurs

The dinosaurs were among the most successful animals ever to live on the Earth. Their reign lasted over 100 million years - and if birds evolved from the dinosaurs, then their descendents are still alive today.  Click on the dinosaur below to learn more.

 

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For more information on dinosaurs, visit these websites:

Walking with Dinosaurs

The Natural History Museum

The Page Museum: La Brea Tar Pits 

Science Topics, K-5

Kindergarten

Animals Two By Two

Trees

Wood & Paper

 

First Grade

Air & Weather

Plants & Animals

Solids & Liquids

 

Second Grade

Balance & Motion

Insects & Plants

Pebbles, Sand & Silt

 

Third Grade

Matter & Energy

Structures of Life

Sun, Moon & Stars

 

Fourth Grade

Environments

Magnetism & Electricity

Solid Earth

 

Fifth Grade

Living Systems

Mixtures & Solutions

Water Planet