Khan Academy

Carbon as a building block of life (K-A)

Elemental building blocks of biological molecules (K-A)

Elements and atoms (K-A)

Functional groups (K-A)

Covalent bonds (K-A)

Dehydration synthesis or a condensation reaction (K-A)

Hydrolysis (K-A)

Ionic bonds (K-A)

Antiparallel structure of DNA strands (K-A)

DNA (K-A)

Molecular structure of DNA (K-A)

Molecular structure of RNA (K-A)

Antiparallel structure of DNA strands (K-A)

Introduction to amino acids (K-A)

Introduction to carbohydrates (K-A)

Molecular structure of triglycerides (fats) (K-A)

Molecular structure of DNA (K-A)

Molecular structure of RNA (K-A)

Overview of protein structure (K-A)

Saturated fats, unsaturated fats, and trans fats (K-A)

Capillary action and why we see a meniscus (K-A)

Hydrogen bonding in water (K-A)

Importance of water for life (K-A)

Surface tension (K-A)

Water as a solvent (K-A)