1 / 94

CAPT REVIEW

CAPT REVIEW. WHAT ARE THE BIG IDEAS IN EARTH/PHYSICAL SCIENCE?. Matter Energy How they interact How do we use them?. HOW DO WE OBSERVE MATTER?. Senses Tools. WHAT'S THE DIFFERENCE BETWEEN PHYSICAL CHANGE and a CHEMICAL CHANGE?. Physical Change is the same substance

kennethgarrett
Download Presentation

CAPT REVIEW

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CAPT REVIEW

  2. WHAT ARE THE BIG IDEAS IN EARTH/PHYSICAL SCIENCE? • Matter • Energy • How they interact • How do we use them?

  3. HOW DO WE OBSERVE MATTER? • Senses • Tools

  4. WHAT'S THE DIFFERENCE BETWEEN PHYSICAL CHANGE and a CHEMICAL CHANGE? • Physical Change is the same substance • Chemical Change new substance (compound)

  5. WHAT MAKES UP MATTER? • Molecules, atoms, elements, mixtures, etc…

  6. PUT THESE IN ORDER OF SIZE: Cell atom molecule grain of sand • Atoms make up molecules which are in cells which are smaller than a grain of sand

  7. WHAT'S AN ATOM? • Smallest part of an element that is still an element.

  8. WHERE DID YOUR ATOMS COME FROM? • The atom of oxygen inside the molecules of water in the cells in your body…. • …have been traveling around the earth since it was formed

  9. Does anything ever go away? • No!, just recycled around and around

  10. Where do we get our resources? • We use minerals, metals, compounds from the ground (mostly). • We change/refine them. • Everything we use is a chemical.

  11. Where does our waste go? • Some items get decomposed. • Some items get burned, atoms in the air. • Some items get dumped, landfills forever.

  12. WHAT MAKES UP AN ATOM? • Protons and neutrons in the center (nucleus) • Electrons orbiting around

  13. HOW ARE ELEMENTS DIFFERENT? • Elements…. Different number of protons

  14. HOW IS THE PERIODIC TABLE PERIODIC? • Arranged by similar properties that repeat. • Elements in the same columns (groups) are alike, because the same number of outside electrons

  15. WHAT'S A COMPOUND? • 2 or more atoms joined together. • Like H2O, water (di hydrogen monoxide), or O2 (oxygen gas)

  16. WHY DO ATOMS JOIN? • Atoms join to exchange or share outer electrons

  17. RULE OF EIGHT • Lose an electron is POSITIVE (metals) Gain an electron is NEGATIVE (non metals) • OPPOSITES ATTRACT: Form Compounds IONIC (Give/Get)

  18. COVALENT (Share) • Organic compounds, carbon, hydrogen, oxygen, share outer electrons.

  19. What’s the structure of plastic? • Chains of Sharing carbons

  20. What are plastics used for? • Come from petroleum, used for strength, flexibility, lightness. • Tough to decompose!

  21. WHAT'S A CHEMICAL EQUATION MEAN? • Combining elements and compounds, rearranging their electrons to make a new substance.

  22. State this in words:HCl + NaOH ---> H2O + NaCl • Acid + Base make Water and a Salt • Same number of atoms on left as right.

  23. WHAT ARE THE STATES (PHASES) OF MATTER? • SOLIDS, LIQUIDS, GASES

  24. What are the differences in the phases? • Gases: like preschoolers in a gym! • Liquids: like middleschoolers at a dance! • Solids: like elderly at a Bingo dinner!

  25. HOW DO THEY CHANGE FROM ONE TO THE OTHER? • Solid --> Liquid --> Gas Take In heat to break bonds • Gas --> Liquid --> Solid Give Off heat to form bonds (you could say take in cold)

  26. WHAT's THE DIFFERENCE BETWEEN HEAT AND TEMPERATURE? • Temperature is the AVERAGE movement energy of each molecule. • Heat is the TOTAL energy transferred. • Campfire and Wood Match, same temperature, different heat

  27. WHAT ARE THE WAYS IN WHICH HEAT CAN BE TRANSFERRED? • Conduction: molecules touch like dominos • Convection: hot molecules spread apart from each other and rise, or cool and fall. • Radiation: Light/Heat travel to move molecules

More Related