Living organisms share common characteristics: Contain cells Grow and develop Use energy Respond to surroundings Contain similar chemicals Reproduce
Daily Archives: May 28, 2013
Here’s an all-purpose biology definition: bi·ol·o·gy (noun) /bīˈäləjē/ Biology is (1) the scientific study of life and living organisms. (2) the flora and fauna of a region. Related Terms Chemistry Definition
Biology Definition
Here’s a good general definition of chemistry: chem·is·try (noun) /ˈkemistrē/ Chemistry is (1) the scientific study of matter and energy and the interactions between them. (2) the composition and properties of a material.
Chemistry Definition
Here are two ways to make real green fire using easy-to-find chemicals. Make green flames with either alcohol or wood as a fuel.
Two Ways to Make Green Fire
One of the basic skills you will develop as you study chemistry is the ability to balance a chemical equation. One you have written a balanced equation, you will be in a good position to perform all manner of calculations! Balancing a chemical equation refers to establishing the mathematical relationship […]
Guidelines for Balancing Chemical Equations
The human body can make 10 of the twenty amino acids, but the other 10 must be obtained through food. These are the essential amino acids. The essential amino acids are histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. Arginine is an essential amino acid for babies and […]