Lightning Trench

The video explains how lightning can damage trees by vaporizing sap and blowing off bark. It describes a specific incident where a tree was struck, resulting in a lightning trench formed by the heat turning soil moisture into steam. The video highlights the dangers of lightning, including its ability to travel through the ground and affect underground utilities, posing risks to people and buildings.

What can happen to a tree when lightning strikes it?

• The leaves can turn blue.

• The tree can grow taller.

• The sap can vaporize, creating steam and blowing off bark.

• The tree can catch fire immediately.

What unusual feature was found at the base of the tree struck by lightning in the cemetery?

• A nest of birds

• A 12-inch deep hole with charred wood

• A pile of rocks

• A pool of water

How is a lightning trench formed?

• By human excavation

• By the heat of lightning turning soil moisture into steam, creating pressure

• By heavy rainfall eroding the soil

• By animals digging in the ground

What is a potential risk of being near a tree struck by lightning?

• The tree might change color.

• The tree might fall over.

• The tree might grow rapidly.

• The electricity can travel through the ground and reach you.

How can lightning affect underground utilities?

• It can cause them to become more efficient.

• It can cause electricity to travel through them and damage buildings.

• It can make them immune to future lightning strikes.

• It can cause them to emit light.