Carbon

Carbon is the ______ element in the periodic chart.

• 5th
• 6th
• 7th
• 8th

All life depends on Carbon.

• True
• False
• Maybe

Carbon is a _____.

• solid 
• liquid
• gas

A metalloid is a ______.

• metal
• gas
• semi-metal
• compound

The atomic number represents the number of _________.

• Protons
• Neutrons
• Electrons

Carbon is the most common element in living organisms.

• True
• False

Carbon is non-flammable.

• True
• False

A pencil is made of _____.

• lead
• metal
•  graphite

Diamonds, graphite, and coal are made of _______.

• oxygen
• hydrogen
• sodium
• carbon

Diamonds are one of the softest substances known to man.

• True
• False