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Q of the Day

Q of the Day. Calculate and record your test percentage (I’m handing them back). Did you meet your goal? WHY or WHY not? (assess and reflect on your preparation). Study (preparation) Plan for next test? Set a new goal: IF you did not meet your goal it stays the same as last time.

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Q of the Day

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  1. Q of the Day • Calculate and record your test percentage (I’m handing them back). • Did you meet your goal? WHY or WHY not? (assess and reflect on your preparation). • Study (preparation) Plan for next test? • Set a new goal: • IF you did not meet your goal it stays the same as last time. • IF you met your goal you must improve by at least one point Day 3 11-4

  2. Q of the Day Day 4 11-13 • What is an atom made of?

  3. Quarterly ATBs Day 4 11-13 • Which field of science studies the composition and structure of matter?

  4. Quarterly ATBs Day 4 11-13 2. A golf ball has more mass than a tennis ball because it

  5. Quarterly ATBs Day 4 11-13 3. Which of the following is a physical property?

  6. Quarterly ATBs 4. How do vapors and gases differ?

  7. Quarterly ATBs Day 4 11-13 5. Which state of matter is characterized by having an indefinite shape, but a definite volume?

  8. Quarterly ATBs Day 4 11-13 6. Which of the following is a heterogeneous mixture?

  9. Quarterly ATBs Day 4 11-13 7. Which of the following is true about compounds?

  10. Quarterly ATBs Day 4 11-13 8. The first letter in a properly written chemical symbol is always

  11. Quarterly ATBs Day 4 11-13 9. What must occur for a change to be a chemical reaction?

  12. Quarterly ATBs Day 4 11-13 10. When an iron nail is ground into powder, its mass ____.

  13. Objective / Essential Question Day 4 11-13 What does the inside of an atom look like, and how do we know?

  14. Before we start: • Brainstorm with your discussion partner: everything you know about an atom. • Look up the definition in the back of the book, and record it • Draw an atom of hydrogen. Draw an atom of oxygen. (There is no wrong answer at this time… Draw something!)

  15. Q of the Day Day 5 11-14 • Cells are to life as ______ are to matter (think building blocks).

  16. Objective / Essential Question What does the inside of an atom look like, and how do we know? Day 5 11-14

  17. The atom (+) Proton Nucleus (0) Neutron ATOM (-) Electron

  18. The atom When and Why do we use models? In chemistry:

  19. Electron cloud

  20. I. Early Greeks • Everything is made of 4 elements: _______________, _______________, • _______________, and _______________. • These combine and interact to make everything. Earth Fire Air Water

  21. The Atom in Ancient Greece • Continuous matter – accepted for nearly 200 years • -Aristotle & Plato • 400 B.C. Basic particle = an atom – “indivisible” • Democritus

  22. After the Greeks, Before 1600… Alchemists experiments • Conducted ___________. • Established standard lab ___________. • Developed __________. • Created lab _________. • Tried to change ____ into ____ through transmutation techniques medicines apparatus lead gold

  23. Early Scientists - 1600’s Robert Boyle • One of the first scientists to rely on ____________ to gain new ___________. • Founder of the ________________ • Boyle’s Law relates ________ to the _______ of a ____. experiments knowledge Scientific Method pressure gas volume

  24. Early Scientists - 1600’sSir Isaac Newton Laws of motion Developed __________________ Newton’s Cradle

  25. Sparks of Knowledge - 1700’sBenjamin Franklin lightning Demonstrated that _______________ is _______________ and that objects can have _______________ or _______________ charge. electrical positive negative

  26. Sparks of Knowledge - 1700’s • Law of conservation of matterstates that during any ________ or _________ process, matter is neither _______ nor ________ • In a reaction, the mass of the reactants ___________ the mass of the products. chemical physical created destroyed E Q U A L S

  27. Sparks of Knowledge - 1700’sJoseph Proust • Developed thelaw of definite proportionsor constant compositionwhich • states that the _____ ratio of elements in a compound is always _________. • Examples: mass the same Water 1g H : 8g O Carbon Dioxide 3g C : 8g O

  28. Lasting Laws Law of Conservation of Mass – Mass is neither destroyed nor created Reactantsmass = Productsmass Law of Definite Proportions – A chemical compound contains the same elements in exactly the same proportions by mass regardless of the size of the sample

  29. Q of the Day Day 6 11-15 • How does the law of conservation of matter apply to the mass of reactants and products in a reaction?

  30. Review 1. Who called the basic particle of matter an atom? 2. They ____ were obsessed with trying to make gold? GET YOUR NOTES OUT AND USE THEM!!!

  31. Objective / Essential Question What does the inside of an atom look like, and how do we know? Day 6 11-15

  32. Assignment Read / review pages 102-104 AND answer #s 1-4 on page 104

  33. Dalton’s Atomic Theory (1800s): • All matter is composed of extremely small particles called atoms. • Atoms of a given element are identical in size, mass, and other properties; atoms of different elements differ in size, mass, and other properties. • Atoms cannot be subdivided, created, or destroyed. • Atoms of different elements combine in simple whole-numbered ratios to form chemical compounds. • In chemical reactions, atoms are combined, separated, or rearranged. • Modern Atomic Theory: • All matter is composed of extremely small particles called atoms. • A GIVEN ELEMENT CAN HAVE ATOMS WITH DIFFERENT MASSES • ATOMS ARE DIVISIBLE INTO EVEN SMALLER PARTICLES. • Atoms of different elements combine in simple whole-numbered ratios to form chemical compounds. • In chemical reactions, atoms are combined, separated, or rearranged.

  34. Dalton’s Atomic Theory (1800s): • All matter is composed of extremely small particles called atoms. • Modern Atomic Theory: • All matter is composed of extremely small particles called atoms.

  35. Dalton’s Atomic Theory (1800s): • Atoms of a given element are identical in size, mass, and other properties; atoms of different elements differ in size, mass, and other properties. • Modern Atomic Theory: • A GIVEN ELEMENT CAN HAVE ATOMS WITH DIFFERENT MASSES

  36. Dalton’s Atomic Theory (1800s): 3.Atoms cannot be subdivided, created, or destroyed. Modern Atomic Theory: 3.ATOMS ARE DIVISIBLE INTO EVEN SMALLER PARTICLES.

  37. Dalton’s Atomic Theory (1800s): 4.Atoms of different elements combine in simple whole-numbered ratios to form chemical compounds. Modern Atomic Theory: 4.Atoms of different elements combine in simple whole-numbered ratios to form chemical coms.

  38. Dalton’s Atomic Theory (1800s): 5. In chemical reactions, atomsare combined, separated, or rearranged. Modern Atomic Theory: 5. In chemical reactions, atoms are combined, separated, or rearranged.

  39. We have Atoms! – 1803-09 John Dalton • Atom’s Appearance • __________ • __________ • _____ ________ • Different __________ • Different __________ • Different __________ Solid Sphere Like marbles sizes colors weights

  40. We have Atoms! – 1809-11 • Joseph Gay-Lussac • The first to do experiments to determine ___________________ chemical formulas • Amadeo Avogadro • Gases are composed of ______________. • Avogadro’s hypothesis states that equal volumes of gases contain the _______ number of gas _______________ at the same ______________ & ______________ molecules SAME molecules pressure temperature

  41. Quick Talk Alchemist Law of Definite Proportions Democritus Electron Precipitate Reactantsmass = Productsmass Proton Catalyst Exothermic reaction Law of conservation of mass Proton Gold Neutron

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