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Matter

Matter. September, 2012. What is Matter?. A substance that has mass (“weight”) and volume (takes up space). PHASES OF MATTER. Matter on Earth can exist as ___ different phases or states . Solid Liquid Gas Plasma Bose-Einstein & Colloids (not covered)

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Matter

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  1. Matter September, 2012

  2. What is Matter? • A substance that has mass (“weight”) and volume (takes up space).

  3. PHASES OF MATTER • Matter on Earth can exist as ___ different phases or states. • Solid • Liquid • Gas • Plasma • Bose-Einstein & Colloids (not covered) • All living and non-living things are made of matter. 4-6

  4. SOLID • Has a definite volume and a definite shape. • The atoms or molecules in a solid are strongly attracted to one another and tightly packed. • Examples: • Rocks • Desk • Apple

  5. LIQUID • has a definite volume but no definite shape. • The atoms or molecules in a liquid are attracted to each other, but not as strongly as those of a solid. They are free to move over and around each other. • Water • Blood • Milk

  6. GAS • Has no definite volume and no definite shape. • The atoms or molecules of gases have very little attractive force on each other. This causes them to move freely and independently. • The atoms or molecules move apart until they’re evenly spaced throughout the container they are placed in. • Examples: • Air (mixture of different gases) • Water Vapor (water in a gas form)

  7. Solid / Liquid / Gas Particles

  8. Plasma on Earth • On Earth, plasma is found naturally in lightning bolts. • Also in Plasma TV’s, Fluorescent Bulbs, and Neon Signs!

  9. Plasma • Most of the matter in the universe is in the plasma state. • Plasma exists at very high temperatures and pressures. Plasma occurs when electrons become temporarily excited! • Stars are composed of matter in the plasma state. • The Sun is matter in this state.

  10. Brainpop Video

  11. CHANGES IN MATTER • Matter will change phases when heat is added or lost. • Melting: solid to a liquid (heat is added) • Boiling: liquid to a gas (heat is added) • Sublimation: solid to a gas (heat is added) • Freezing: liquid to a solid (heat is lost) • Condensation: gas to a liquid (heat is lost) BrainpopVideo

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