David Blaine Do Not Attempt | Official Trailer | National Geographic

What property of materials helps protect a person from severe burns when briefly exposed to flames?

• Conductivity

• Reflectivity

• Insulation

• Transparency

When a large group of bees covers a person without stinging, what behavior are they most likely exhibiting?

• Aggressive defense

• Pollination

• Swarming

• Hibernation

What is a common physiological reaction of the human body when suddenly exposed to extremely cold water?

• Slowed breathing and heart rate

• Increased body temperature

• Gasping and rapid breathing

• Muscle relaxation

What material property of glass causes it to shatter easily when struck with force?

• Elasticity

• Brittleness

• Ductility

• Malleability