The Science of Lightning: National Geographic

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"...and one that scientists are _ learning about."

What do you think "strokes" means in this context?

• When someone's brain suddenly has its supply of oxygen interrupted.

• When something hits something else.

• When someone caresses something else.

• When someone paddles a boat.

• To write a character on a page.

How often is lightning estimated to occur worldwide?

• 50-100 times a second.

• 15-100 times a second.

• 50-100 times a minute.

• 15-100 times a minute.

• It's unknown.

"The _ of light are pure electricity."

What happens to the lighter particles in thunderstorms?

• They move upwards and become positively charged.

• They move upwards and become negatively charged.

• They move downwards and become positively charged.

• They move downwards and become negatively charged.

• Nothing

What happens to the heavier particles in a thunderstorm?

• They move upwards and become positively charged.

• They move upwards and become negatively charged.

• They move downwards and become positively charged.

• They move downwards and become negatively charged.

• Nothing.

"...but some strikes the Earth in _ flashes."

What do you think is the meaning of "branching"?

• Alive like a tree.

• Sounding like a tree.

• Growing like a tree.

• Shaped like a tree.

• Moving like a tree.

How hot is the path of lightning?

• 5,000 degrees Fahrenheit.

• 500,000 degrees Celsius.

• 50,000 degrees Fahrenheit.

• 50,000,000 degrees Fahrenheit.

• 50,000 degrees Celsius.