6-8 Science » A. Physical Science » A.2. Elements, Compounds, and Mixtures

• Home
• Play Multiplayer
• Unit Challenge

Elements, Atoms and Molecules

• What are Atoms?
• What is an Element?
• Some Common Examples of Elements
• The Periodic Table
• What is a Compound?
• More Examples of Compounds
• Mixed Practice

Distinguishing Mixtures from Pure Substances

• What is a Pure Substance?
• What is a Mixture?

Physical and Chemical Changes

• Identifying Physical Changes
• Identifying Chemical Changes
• Physical Changes: Melting and Boiling Points
• Melting and Boiling Points of Water
• Understanding Conservation of Mass