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Pure Substances & Mixtures. Chapter 4. Mixtures or pure substances? Matter Properties Mixture Heterogeneous Homogeneous. Questions on page 106. 5 properties Water- wet, pours, tasteless, clear, liquid, boils=100degrees Celsius Glass- smooth, translucent, fluid, melts, reshape
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Chapter 4 Mixtures or pure substances? • Matter • Properties • Mixture • Heterogeneous • Homogeneous
Questions on page 106 • 5 properties Water- wet, pours, tasteless, clear, liquid, boils=100degrees Celsius Glass- smooth, translucent, fluid, melts, reshape Steel-smooth, conducts electricity, heavy, high melting point
Questions on page 106 2. Differences Homogeneous – 1 set of properties Heterogeneous – more than 1 set of properties
Questions on page 106 3. Class Materials • Heterogeneous – soil, light bulb • Homogeneous – steel, copper wire, plastic
Questions on page 106. 4. a. color, shape, b. Heterogeneous- more than 1 set of properties.
Matter Heterogeneous Homogeneous solutions Pure substances
Particle Theory of Matter (5) Explains why different types of matter have different properties. • All matter is made up of extremely small • particles. • Each pure substance has its own type of • particle.
Particle Theory of Matter All matter is made of unique particles. Particles are very small. Particle are always moving. Particles attract each other. Particles at higher temperatures move faster.