Ideas in this flowchart

• Hydrogen Bonds in Biology
• Importance of Hydrogen Bonds
• Life Depends on Hydrogen Bonds
• Search for Water on Exoplanets
• Role in Water
• Extraordinary Properties of Water
• Ice Floats
• Dissolves Molecules
• Role in Cells
• Molecular Machines
• Protein Folding
• Enzyme Function
• Role in DNA
• Double Helix Structure
• Weak Yet Crucial