TeachEngineering
Teach Engineering: Surfactants: Helping Molecules Get Along
Students learn about the basics of molecules and how they interact with each other. They learn about the idea of polar and non-polar molecules and how they act with other fluids and surfaces. Students acquire a conceptual understanding...
CK-12 Foundation
Ck 12: Life Science: Carbon Cycle
[Free Registration/Login may be required to access all resource tools.] Carbon is one of the most common elements found in living organisms. Chains of carbon molecules form the backbones of many molecules, such as carbohydrates,...
CK-12 Foundation
Ck 12: Life Science: Transcription of Dna to Rna
[Free Registration/Login may be required to access all resource tools.] DNA is located in the nucleus. Proteins are made on ribosomes in the cytoplasm. Remember that information in a gene is converted into mRNA, which carries the...
Khan Academy
Khan Academy: Biology Foundations: Unit Test
A nine-question unit test over biology foundations along with a review of the chemistry basics to help you understand the beauty of life.