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Does it really…….. MATTER????

Does it really…….. MATTER????. What is matter?. Anything that has mass and takes up space. What isn’t matter?. What is matter made of???. Democritus- empty space and tiny bits of stuff…. called them atoms. What is the Law of Conservation of Mass????.

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Does it really…….. MATTER????

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  1. Does it really……..MATTER????

  2. What is matter? • Anything that has mass and takes up space

  3. What isn’t matter?

  4. What is matter made of??? • Democritus- empty space and tiny bits of stuff…. called them atoms

  5. What is the Law of Conservation of Mass???? • Matter cannot be created or destroyed- it only changes forms

  6. Who wrote that law? • Antoine Lavoisier- a French chemist • http://www.youtube.com/watch?v=x9iZq3ZxbO8

  7. What is an atom? • A particle that makes up most types of matter….an atom is made of smaller parts

  8. How do we know what an atom looks like? • We use models to help us understand • http://www.youtube.com/watch?v=xqNSQ3OQMGI

  9. Who is John Dalton? • He believed atoms were too small to be seen by the human eye

  10. Who is J.J. Thompson? • Discovered the electron • Electrons are negative

  11. Who is Rutherford? • Discovered the nucleus of the atom

  12. What is found in the nucleus? • Protons- positive • Neutrons- neutral • Facts- • P + N- atomic mass • # of P= atomic number • # of P= # of electrons

  13. What is the difference in a physical change and a chemical change? • Physical change- a substance is not changed chemically • Chemical change- a new substance forms • http://www.youtube.com/watch?v=qqqmFFCwd7k

  14. A Carbon Atom

  15. Is this a chemical change or physical change???? • http://www.youtube.com/watch?v=uZlh89iL4jI&feature=related

  16. Physical Properties of matter • Color *Temperature • Shape • Mass • Length • Volume • Density • http://www.youtube.com/watch?v=QkAPTXr5vMs

  17. Chemical Properties of Matter • Flammability • Reacts with oxygen (oxidation) • Reacts with light • Reacts with water • http://www.youtube.com/watch?v=OgS46ksAawk • http://www.youtube.com/watch?v=uJOGy0dgmUU

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