Compound Notes

Compound Notes

1st Word 2nd Word 3rd Word

Use your word cards make 5 compound words

1st Word 2nd Word 3rd Word

Ham String Hamstring

Quarter Back Quarterback

Cross Bow Crossbow

Honey Moon Honeymoon

Cart Wheel Cartwheel

Compound words are two separate words with two separate meanings combined to form a new word.

Compounds in science are similar.

There are millions and millions of compounds.

Compounds

A compound is a pure substance composed of two or more elements chemically combined in a specific proportion.

Compounds

When elements combine to form a compound we say they have made a chemical reaction.

The elements in a compound can lose their properties and take on new properties.

Examples of CompoundsNa-Sodium and Cl-Chlorine (a deadly gas) combine to form the compound NaCl which makes table salt.

H-Hydrogen (gas) and O-Oxygen (gas) combine to form water (liquid)

Identifying Compounds

Identify these cards as either elements (E) or compounds (C)

Identifying Compounds

Identify these cards as either elements (E) or compounds (C)

Reading Compounds A formula tells you how many atoms

of each element are in the compound and what elements are in the compound.

For example, CO₂ Carbon Dioxide has 1 atom of the element Carbon (C) and 2 atoms of the element Oxygen (O)

A compound will always have two or more capital letters in the formula.

Elements only have one capital letter