Structure and Types of Carbohydrates Carbohydrates are organic compounds made of carbon, hydrogen, and oxygen that serve as the primary energy source for our cells. Energy Powerhouse: Carbohydrates fuel the body because they break down into glucose—a vital energy...

Protein Structure & Assembly Proteins are built from tiny building blocks called amino acids, which join in a specific order to create a unique structure. Building Blocks: Proteins are made up of 20 different amino acids. Peptide Bonds: Amino acids link together...

How Hurricanes Form Hurricanes form over warm ocean waters and grow into massive storms through a powerful energy cycle. Warm Ocean Waters: Provide the energy that fuels hurricanes by heating the air above, which then rises and creates a low-pressure center. Low...

  What is Conservation Biology? Conservation biology is the science that helps us understand why species become endangered and how factors like habitat loss and human impact threaten their survival. What Makes a Species Endangered: Factors include shrinking...

The Basics of the Nitrogen Cycle The nitrogen cycle is nature's way of making nitrogen useful for living things. What is Nitrogen? Nitrogen is a gas that makes up 78% of the air we breathe, but it must be converted into different forms to be useful to plants and...

Three Main States of Matter Matter exists in different states, each with unique properties that define its shape, volume, and movement. Solids have a definite shape and volume because their particles are tightly packed and vibrate in place. Some metals can be...