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Fridays Bell Ringer

This graph shows the change in speed of a motorcycle over time. It answers questions about the distance traveled in the first 5 seconds and the speed during seconds 6-11.

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Fridays Bell Ringer

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  1. Fridays Bell Ringer The graph shows how the speed of a motorcycle changes over time. 1- How far does the motorcycle travel in the first 5 seconds? 2-What was the motor cycles speed during seconds 6-11.

  2. MYP Unit Question: How are waves important to me and life on this planet: By the way-can you hear me now? Area of Interaction: Health and social interaction Learner Profile: Knowledgeable and Thinkers EQ: Am I ready for the CRCT? Learning Target: Today I am learning about Matter (atoms and stuff) because I need to review these concepts before the CRCT test . Homework: Study, study study

  3. Agenda • Opening • Forces and motions Video- packet review • Work session • CRCT Review of Matter • Closing • Answer this

  4. Opening: Atoms and Golden Retrievers? • http://www.youtube.com/watch?v=9qwBfBugo_A

  5. CRCT Review! Ask Questions  • Atom: • Smallest unit of an element. • Protons (+), neutrons (no charge), and electrons (-).

  6. Molecules • 2 or more atoms chemically combined. • Ex. H2O • Ex. O2

  7. Solids, Liquids, and GasesDraw quick picture of each and label.

  8. Let’s Review • http://www.youtube.com/watch?v=hc0EtPPpZUU

  9. Discuss! • What is the difference between an atom and a molecule?

  10. Elements, Compounds, and Mixtures • Pure Substances: • Element: substance that cannot be broken down into simpler substances \ • Over 100 elements. Ex. Oxygen, Copper • Compound: atoms of 2 or more elements combine to form new substance. Ex. NaCl (salt) • Mixture: 2 or more elements combined but not new substance (air, sand, salt water)

  11. Show Your Understanding! • Create the following from the lego’s on your table: • Element • Molecule (but, not a compound) • Compound • Mixture • Discuss with your group, the difference between each.

  12. See if you can identify as Element, Compound, or Mixture

  13. Element Compound Mixture

  14. Compound, 2 types of elements

  15. Molecules, 1 type of element

  16. Compounds, 2 types of elements

  17. Mixture, 2 types of compounds, 4 types of elements

  18. Mixture, 1 compound, 3 types of elements

  19. Practice Game • Click here

  20. Physical Change • Physical change: a change that occurs that does not change the identity of the substance • Melting ice • Freezing Kool-aid • Tearing paper • Boiling water

  21. Chemical Changes • Chemical change: a change that occurs causing the identity of the substance to change • Burning • Digesting food • Reacting with other substances • A chemical change is called a chemical reaction

  22. Chemical Changes • Indicators of a chemical change: • light • heat • gas • Color change • Formation of a precipitate

  23. Is it Physical or Chemical?

  24. Law of Conservation of Mass • Matter is neither created nor destroyed.

  25. Practice #1 • If different kinds of atoms are represented by different colored dots, which picture below represents a mixture?A. B. C. D.

  26. Practice #2 • Evidence of a chemical change would be aa. melting popsicle. b. spinning top. c. spilled bucket of water. d. rusting car fender.

  27. Practice #3 • A copper sheet is heated in a furnace until it melts. The hot liquid copper is then cooled until it becomes solid again. Compare the mass of the copper before and after melting. • The new solid copper is lighter than the original sheet. • The new solid copper is heavier than the original sheet. • The new solid copper is the same weight as the original sheet. d. The molten copper was lighter than the sheet or the new solid.

  28. Practice #4 • The chemical formula of glucose is C6H12O6, so it is classified as a(n) • Element • Mixture • Solution • Compound

  29. Practice #5 • . Step1: Grind substance into a fine powder with a mortar and pestle. • Step 2: Add the substance to a beaker containing 300ml of water • Step 3: The mixture bubbles and a gas is emitted • The substance's tendency to react with water in step 3 would be placed where on the Venn diagram?

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