Search Kids Discover Online's Library of Content

Close

Filter By

Grade Levels

K
1st
2nd
3rd
4th
5th
6th
7th
8th

Subjects

American History
Earth Science
Geography
Historical Figures
Human Body
Life Science
Physical Science
Technology
Space Science
World History

Content Type

Units
Topics
QuickReads
Videos
Infographics
Lesson Plans

Reset Filters

Filter by

Grade Levels

K
1st
2nd
3rd
4th
5th
6th
7th
8th

Subjects

American History
Earth Science
Geography
Historical Figures
Human Body
Life Science
Physical Science
Technology
Space Science
World History

Content Type

Units
Topics
QuickReads
Videos
Infographics
Lesson Plans

Apply Filters

Reset Filters

Need more information?

Contact Us Browse FAQs

Discover Map Scavenger Hunts

About

How It Works Case Studies

About

How It Works Case Studies

Standards Pricing

Log In Sign Up Free

Log In Sign Up Free

Aa

Video

The Building Blocks of Life

Of the 118 known elements, carbon is the key building block of life as we know it.

6:35 · Physical Science

Hydrogen, oxygen, and nitrogen are others. Together, these four elements make up 96 percent of your body mass.

Related Articles

Our goal is to inspire kids, feed their natural curiosity, and instill a love of reading and learning in an environment filled with fun.

FAQs Case Studies About Us Careers

© Copyright 2025 Kids Discover. All Rights Reserved.

Privacy Policy Terms & Conditions

Alert!

This is my alert message