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Elements, Compounds, Mixtures

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Elements, Compounds, Mixtures. atom. The smallest part into which an element can be divided and still maintain its properties. element. Any substance that cannot be broken down into a simpler substance. compound. A substance that is formed by the combination of elements using fixed amounts.

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Presentation Transcript
slide2

atom

The smallest part into which an element can be divided and still maintain its properties

element

element

Any substance that cannot be broken down into a simpler substance

compound

compound

A substance that is formed by the combination of elements using fixed amounts

molecule

molecule

The smallest physical unit of a substance that can exist independently

mixture

mixture

When two or more substances are not joined chemically

slide7

H2O

Know the formula for water

solution

solution

A homogeneous mixture of two or more substances

ways to separate mixtures

Ways to Separate Mixtures

1. Sifting-Using a sifter to separate two items. One item is bigger than the other.

ways to separate mixtures1

Ways to Separate Mixtures

2. Magnetism-using a magnet to separate a magnetic object and a non-magnetic object

ways to separate mixtures2

Ways to Separate Mixtures

3. evaporation-boiling the liquid off of a substance

ways to separate mixtures3

Ways to Separate Mixtures

4. filtration- using a filter to separate a mixture. One object is usually larger than the other

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