Creator: World of Molecules | visit site
Grade Range: 6 - 11
View a variety of molecules in the following categories: Food, Fuel, Pesticides, Solvents, etc. Key resources found on this free site include a periodic table, scientific calculator, dictionary, and molecular modeling. Use "Explain It with Molecules" to use interactive 3-D molecules for greater understanding of interactions. Find elements by using the "Directory of Elements" search function select a molecule by searching "3-D Structures." View molecular structures and read background information about the molecules.
In the Classroom
Choose Fuels to identify similarities and differences between the various types of hydrocarbons. Such lists can bring to life the molecular formulas of the compounds and the resulting chemical and physical properties. Discuss the energy required to break down these molecules through the process of combustion. View the food molecules to identify why the calorie amount for each is different. Create a discussion of how different biomolecules are used in the body. Have cooperative learning groups research a compound or property and create an online poster using a tool such as Web Poster Wizard (<a href="/single.cfm?id=7332">reviewed here</a>) or PicLits (<a href="/single.cfm?id=9822">reviewed here</a>).
At Home
Struggling with chemistry and molecular structure? Use this site to help students see the molecules in 3-D form. Use the pictures to create models of your own using styrofoam balls or marshmallows and toothpicks.