Chemistry

Study of matter, its properties, and the changes it undergoes.

What is Matter?Physical and Chemical PropertiesChanges in Matter
Atomic StructureThe Periodic TableChemical Reactions and Equations
Chemistry in the KitchenChemistry in the EnvironmentMedicine and Materials
Mastering VocabularySolving Chemistry ProblemsMaking Connections
What is Matter?Physical and Chemica...Changes in MatterAtomic StructureThe Periodic TableChemical Reactions a...Chemistry in the Kit...Chemistry in the Env...Medicine and Materia...Mastering VocabularySolving Chemistry Pr...Making Connections
Practical Applications

Chemistry in the Kitchen

The Science of Cooking

Every time you cook, you're a chemist! Cooking involves changing matter in all sorts of ways—mixing, heating, freezing, and more.

Everyday Chemistry

  • Baking a cake is a chemical change, as new flavors and textures form.
  • Boiling water is a physical change—you're just changing liquid water to steam.
  • Mixing oil and vinegar for salad dressing is a physical change (no new substances are created).

Understanding chemistry helps you become a better cook and experiment safely with recipes!

Examples

  • Caramelizing onions creates new flavors through chemical reactions.

  • Dissolving sugar in lemonade is a physical change.

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Chemistry in the Environment