Some forms of algae have been on Earth for over 3 billion years!
Oxygen: The Basics To get started, check out this page for some basic facts about oxygen—element number eight on the Periodic Table. Enjoy the rebus!
How many electrons does an oxygen atom contain?
What molecule is made of three oxygen atoms?
What chemist gave oxygen its name?
Photosynthesis Photosynthesis is the process that plants and algae use to make food and oxygen. Learn all the details at this site from Newton's Apple.
What does a plant produce from carbon dioxide, water, and light?
What three elements make up carbohydrates?
Which plants perform 75 percent of all the photosynthesis on Earth?
Marine Plants and Algae Algae provide us with most of the oxygen we breathe. So, the least we can do is learn more about them! At this site, you'll find tons of information about algae and how they help us.
Name a kind of algae that is used to make candy.
Give two examples of marine grasses.
In which ocean zone do most marine plants grow?
