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What is Chemsitry? What do you know about its history.

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Presentation on theme: "What is Chemsitry? What do you know about its history."— Presentation transcript:

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2 What is Chemsitry? What do you know about its history

3 ALCHEMISTS

4 ANTOINE LAVOISIER FATHER OF MODERN CHEMISTRY Followed scientific method to challenge pholgiston theory.

5 What is matter? Matter is anything that has mass and takes up space.

6 Properties of Matter How It Looks (Shiny,Dull, Color, etc.) How It Looks (Shiny,Dull, Color, etc.) How It Feels (Hard, Soft, Rough, Smooth, etc.) How It Feels (Hard, Soft, Rough, Smooth, etc.) How It Smells (Sweet, Sharp, Terrible, No Smell, etc.) How It Smells (Sweet, Sharp, Terrible, No Smell, etc.) How It Sounds (Loud, Soft, Echo, No Sound, etc.) How It Sounds (Loud, Soft, Echo, No Sound, etc.) What It Does (Bounce, Stretch, Tear, Break, Magnetism etc.) What It Does (Bounce, Stretch, Tear, Break, Magnetism etc.)

7 STATES OF MATTER The Four States of Matter The Four States of Matter Solid Solid Liquid Liquid Gas Gas Plasma Plasma

8 STATES OF MATTER  Based upon particle arrangement  Based upon energy of particles  Based upon distance between particles

9 Kinetic Theory of Matter Matter is made up of particles which are in continual random motion.

10 STATES OF MATTER SOLIDS Particles of solids are tightly packed, vibrating about a fixed position. Solids have a definite shape and a definite volume. Heat

11 STATES OF MATTER LIQUID  Particles of liquids are tightly packed, but are far enough apart to slide over one another.  Liquids have an indefinite shape and a definite volume. Heat

12 STATES OF MATTER GAS  Particles of gases are very far apart and move freely.  Gases have an indefinite shape and an indefinite volume. Heat

13 PHASE CHANGES Description of Phase Change Term for Phase Change Heat Movement During Phase Change Solid to liquid Melting Heat goes into the solid as it melts. Liquid to solid Freezing Heat leaves the liquid as it freezes.

14 PHASE CHANGES Description of Phase Change Term for Phase Change Heat Movement During Phase Change Liquid to gas Vaporization, which includes boiling and evaporation Heat goes into the liquid as it vaporizes. Gas to liquidCondensation Heat leaves the gas as it condenses. Solid to gasSublimation Heat goes into the solid as it sublimates.

15 But what happens if you raise the temperature to super-high levels… between 1000°C and 1,000,000,000°C ? Will everything just be a gas?

16 STATES OF MATTER PLASMA  A plasma is an ionized gas.  A plasma is a very good conductor of electricity and is affected by magnetic fields.  Plasmas, like gases have an indefinite shape and an indefinite volume. Plasma is the common state of matter

17 STATES OF MATTER SOLID LIQUID GAS PLASMA Tightly packed, in a regular pattern Vibrate, but do not move from place to place Close together with no regular arrangement. Vibrate, move about, and slide past each other Well separated with no regular arrangement. Vibrate and move freely at high speeds Has no definite volume or shape and is composed of electrical charged particles

18 Some places where plasmas are found… 1. Flames

19 2. Lightning

20 3. Aurora (Northern Lights)

21 The Sun is an example of a star in its plasma state

22 MATTER CAN BE SORTED INTO TWO CATEGORIES PURE MIXTURES SUBSTANCES

23 PURE SUBSTANCE Substance that is made up of all the same kind of matter. All the particles have the same chemical formula. ELEMENT OR COMPOUND

24 MATTER

25 MIXTURE Substance that is made up of DIFFERENT kinds of matter. ELEMENTS AND/ OR COMPOUNDS

26 MATTER

27 SUMMARY OF RELATIONSHIPS BETWEEN DIFFERENT FORMS OF MATTER

28 Vocabulary Allotrope One of two or more different molecular forms in the same physical state. oxygen (O 2 ) and ozone (O 3 ) diamond, graphite, bucky ball


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