Solids, Liquids & Gases

Hands-On Activities

Test Your Knowledge

  • Earth’s Atmosphere
    Explore the five layers of our planet’s atmosphere.
  • Evaporation and Condensation
    Find examples of evaporation and condensation in nature.
  • Gases
    Take this quiz to find out how gases can save you in a car crash or make a volcano blow its top.
  • Science of Soda Pop
    Learn the process by which soda-pop is made.
  • States of Matter
    Most things are either solids, liquids, or gases. Learn more about the states of matter by answering these riddles.
  • Surface Tension
    Examine some pictures to see how water's attraction to itself can create natural works of art.
  • Water
    Explore the many ways that water is essential to life on planet earth.