Crescent Public Schools
The Internet Science Room: Percentage Composition and Empirical Formulas
Students learn how to find percentage composition, the percentage of a formula mass represented by each element. Percentage composition compares the mass of one part of a substance to the mass of the whole.
Science Struck
Science Struck: Composition of Air
Discover all the elements and chemical compounds that are found in the air. They are presented in a chart listing their symbols, molecular weights, and what percent of the atmosphere they each comprise. A set of facts is also provided.
Alabama Learning Exchange
Alex: Chemistry Is Colorful!!!
In this instructional activity, students are introduced to the 5 major types of chemical reactions. Each reaction type will be analyzed and specific examples will be noted. Students will then perform a lab investigation which includes...
PBS
Pbs Learning Media: Meaning of Matter
Matter is all around us, so it's a good idea to know what it is, and why it matters. Learn about matter, its categories, and its subcategories with this interactive lesson.
Ducksters
Ducksters: Chemistry for Kids: Organic Chemistry
Kids learn about organic chemistry including the importance of carbon, organic molecules, compounds, hydrocarbons, synthesis, and functional groups.
National High Magnetic Field Laboratory
Magnet Academy: Humphry Davy
Humphry Davy was a pioneer in the field of electrochemistry who used electrolysis to isolate many elements from the compounds in which they occur naturally. Electrolysis is the process by which an electrolyte is altered or decomposed via...