Elements, Compounds and Mixtures

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Presentation transcript:

Elements, Compounds and Mixtures

What you should learn about today What an element is Where there is a list of all of the elements How to make a mixture of different elements What a compound is How to make a compound

Homework 1KB Learn – definition of an element, differences between compounds and mixtures Pg 146 Q9,10,11 Test on Digestion+ Enzymes MONDAY

Homework 1J/F/Y Learn – definition of an element and a compound Test on Digestion+ Enzymes

Carbon is made up of lots of carbon atoms

Gold is made up of lots of gold atoms

Oxygen is made up of lots of oxygen atoms.. they are usually in pairs A molecule is made of two or more atoms chemically combined

An element is a substance made up of only one type of atom

Other elements… Copper Sulphur Magnesium Chlorine

Compounds are things that are made up of two or more different types of atoms chemically combined

Check your learning.. What is an element? Give some examples Where are all of the elements listed? Define compounds. Give some examples

Objectives for today To make a mixture and examine its properties To make a compound and examine its properties

Homework Orange BOOK Pg 175 q1, q2,q3 Blue book Pg 145 Q1, Q2,Q3, Q7 Learn the differences between compounds and mixture

Think... What is a mixture? Can you think of any examples of mixtures that you know of?

Examine the properties of the mixture Mix the two elements together and grind using a mortar and pestle Examine the properties of the mixture Using a mass balance measure: 7g iron filings 4g of sulphur Make the compound iron sulfide

Check your learning.. What is an element? Give some examples Where are all of the elements listed? Define mixture. Give some examples Define compounds. Give some examples

Differences between mixtures and compounds Iron and sulfur mixture Iron sulfide (a compound) How many different substances are present? Is any heat released when making it? Is it easy to separate back into elements? Do the elements keep their original properties?

Are the following …elements, Compounds or Mixtures?

Salt - Element, Compound or Mixture?

Silver - Element, Compound or Mixture?

Oxygen - Element, Compound or Mixture?

Sea Water - Element, Compound or Mixture?

Copper - Element, Compound or Mixture?

Gravel - Element, Compound or Mixture?

Hydrogen - Element, Compound or Mixture?

Nitrogen - Element, Compound or Mixture?

Carbon Dioxide - Element, Compound or Mixture?

Air - Element, Compound or Mixture?

Water - Element, Compound or Mixture?

Petrol - Element, Compound or Mixture?

Sulfur - Element, Compound or Mixture?

Carbon - Element, Compound or Mixture?

Cola drink - Element, Compound or Mixture?

Mercury - Element, Compound or Mixture?

Gold - Element, Compound or Mixture?

Zinc - Element, Compound or Mixture?

Iron Filings - Element, Compound or Mixture?

Aluminium - Element, Compound or Mixture?

Copper Sulfate - Element, Compound or Mixture?

Rock Salt - Element, Compound or Mixture?

Can you think of any molecules that we have already seen? A molecule is made up of two or more atoms chemically combined Can you think of any molecules that we have already seen?

One atom of oxygen and two atoms of hydrogen make up each molecule of water

One atom of carbon and two atoms of oxygen make up each molecule of carbon dioxide