What is carbon? Atoms – Chemistry
Diagram of a carbon atom Where does carbon come from? When a star has changed all of the hydrogen atoms into helium, it begins to convert the helium atoms into [...]
Diagram of a carbon atom Where does carbon come from? When a star has changed all of the hydrogen atoms into helium, it begins to convert the helium atoms into [...]
A yeast cell Yeast cells are a very common kind of eukaryote cell. They vary in size, but are usually about four thousandths of a millimeter (4 microns) in diameter, too [...]
Chloroplasts (seen through a microscope) Photosynthesis is the way some cells on Earth pull in light from the sun and use it to make energy to repair and reproduce themselves. [...]
A boy making bread You can see what yeast does by making bread at home. It doesn't matter what recipe you use as long as the recipe calls for yeast, [...]