Matter ELEMENTS, COMPOUNDS, AND MIXTURES

Matter – A Review  Matter is anything that has mass (can be weighed) and volume (takes up space).  Matter is made up of atoms  atoms are the building blocks for all matter  atoms form different elements  elements form molecules  Matter can be classified as either a pure substance or a mixture

Matter – Pure Substances A pure substance:  is made up of one type of particle  has its own unique physical and chemical properties  composition never varies  examples: oxygen (O 2 ), water (H 2 O), carbon dioxide (CO 2 )

Matter – Pure Substances: Elements An element:  consists of only one kind of atom  can exist as either atoms or molecules  cannot be separated into simpler substances by chemical or physical means  examples: oxygen (O 2 ), helium (He), gold (Au)

Matter – Pure Substances: Compounds A compound:  is made of different elements held by chemical bonds  has elements in a specific ratio that is always the same  has its own unique physical and chemical properties  can only be separated by chemical means, not physically  examples: salt (NaCl), water (H 2 O), carbon dioxide (CO 2 )

Matter – Mixtures A mixture:  is made from different pure substances (elements, compounds, or both) that are not chemically joined  is held together by physical forces, not chemical  can be separated physically (filtration, evaporation, distillation)  examples: ocean water, air, soil, vegetable soup

Directions You will be shown a series of pictures. Write the name of the item in the correct column, Element, Compound, or Mixture ElementCompoundMixture

Element, Compound, or Mixture? Rocks

Element, Compound, or Mixture? Rocks

Element, Compound, or Mixture? Copper

Element, Compound, or Mixture? Copper

Element, Compound, or Mixture? Jelly Beans

Element, Compound, or Mixture? Jelly Beans

Element, Compound, or Mixture? Table Sugar

Element, Compound, or Mixture? Table Sugar

Element, Compound, or Mixture? Diamond

Element, Compound, or Mixture? Diamond

Element, Compound, or Mixture? Tea

Element, Compound, or Mixture? Tea

Element, Compound, or Mixture? Salt

Element, Compound, or Mixture? Salt

Element, Compound, or Mixture? Neon Gas

Element, Compound, or Mixture? Neon Gas

Element, Compound, or Mixture? Salad

Element, Compound, or Mixture? Salad

Element, Compound, or Mixture? Pure Water

Element, Compound, or Mixture? Pure Water

Element, Compound, or Mixture? Aluminum

Element, Compound, or Mixture? Aluminum

Element, Compound, or Mixture? Lemonade

Element, Compound, or Mixture? Lemonade

Element, Compound, or Mixture? Silver

Element, Compound, or Mixture? Silver

Element, Compound, or Mixture? Sand

Element, Compound, or Mixture? Sand