Change of the Physical and Chemical Varieties

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Presentation transcript:

Change of the Physical and Chemical Varieties By Sofie Baxter and Rachel Mills

A Physical Change What it means: A Physical Change is a change that doesn’t change what the substance is. Examples will be on the next page.

5 Examples of Physical Change Ice cream melting. (It is still ice cream!) Paper ripping in half. Water freezing into ice. Hair being cut. (Its just shorter now) And, a tree being cut down into logs. (Its still wood!)

Even More Examples (part 1) 6. Salt dissolving. Into dissolved salt. 7. Sugar dissolving. Same concept as salt. 8. If we break a bone its still a bone. 9. If we break glass its still glass. 10. Break cardboard. Its still cardboard. (Duh.)

A Chemical Change What it means: A Chemical Change is when a chemical reaction takes place and a new substance is formed.

5 Examples of Chemical Change Fireworks exploding. Baking Soda and Vinegar making a cool explosion. Mold turning bread all moldy. Burning wood. Baking a Cake.

Even More Examples (part 2) 6. The rusting of metal. 7. Leaves changing in the Autumn. Wood rots. Digestion is chemical! Milk going sour.

What could it be? If you are mixing two different substances, it would seems pretty obvious that it will make something different. Like red and blue make purple.

Poem Physical Change doesn’t change at all. Chemical change explosions, are really big and small. Also a difference could be. The ways of their lettering. And that is all and we are done, now we want to have some fun.