Friday, February 24, 2017

Physical and Chemical Change

Changes everywhere!!

Physical Change- change to matter in which no new kind of matter is formed

    • Examples:
      • Origami (art of folding paper)
      • Cutting Paper
      • Ice Melting
  • Mixture- a substance that  contains two or more different types of matter
    • These types of matter CAN BE SEPARATED!! That is very important!
      • Examples:
        • Alphabet Soup
        • Trail Mix
        • Marbles and Beads in a bag
  • Solution- a mixture in which the particles of the different kinds of matter mix together evenly.
    • This is different from a regular mixture because you CANNOT SEPARATE the different kinds of matter BY HAND!!
      • Examples:
        • Salt Water
        • Sweet Tea
        • A Penny (this is a solution of two metals called an alloy. A penny is made of zinc and copper)
Chemical Change- change that forms a different kind of matter
      • Examples:
        • Cooking Food
        • Rusting Nails
        • Burning Wood
    • What are some ways we use chemical changes in our lives?
      • Burn fuel to power our cars.
      • Cook food so we can eat it.
      • Digestion
      • FUN FACT: Plants use chemical changes to make their food!


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