1st Six Week Exam Review

Diamonds are a pure form of what element?

• Carbon
• Oxygen
• Silicon
• Silver

A vertical column is called...

• group
• tower
• period
• crew

The yellow atoms are called

• metals

• nonmetals

• metalloids

• noble gases

Examples are water (H₂O) and carbon dioxide (CO₂).

• elements

• compounds

This picture represents which of the following?

• element

• compound

The horizontal row on the periodic table is called a

• group
• family
• period
• atomic number

Which is evidence that a chemical change has happened?

• Bending or Breaking
• Nothing happens
• The change can be reversed
• Color Change

Souring of milk is an example of a:

• Chemical Change
• Physical Change

When you bake a cake, it is a chemical change. How do you know this?

• The cake tastes good
• The cake changed shape
• The cake stayed the same
• You can't turn the cake back into the ingredients.

Methane is a colorless odorless gas compound. Given the structure, what elements compose the methane?

• Helium and Carbon

• Helium and Calcium

• Hydrogen and Carbon

• Hydrogen and Calcium