Are you smarter
What is the hardest substance in the human body?
Tooth enamel
Where is the thyroid gland?
Neck/Throat
What is the most populated city in Canada?
Toronto- nearly 3 million residents
Which US state is farthest East?
Maine
What is the heaviest bird?
Ostrich
What country did Australia gain its freedom from?
United Kingdom
What is the pH level of water?
7
What is the only liquid metal?
Mercury
What has a gravitational pull so strong that nothing, not even light, can escape it?
A black hole
Which color is found on 75% of the worlds flags?
Red