Tornadoes and Lightning

What is a tornado?

• a violent rotating column of air extending from a thunderstorm to the ground

• a calm rotating horizon of air extending from one side of the earth to the other

• a gust of wind on a summer day

How do tornadoes form? CHOOSE THREE.

• thunder storm

• moist air

• dry air

• unstable atmosphere

• stable atmosphere

How do tornadoes stop?

• The air becomes dry again.

• Researchers do not know for certain.

• The wind becomes strong enough to blow away the tornado.

What do gustnados and dust devils have in common? CHOOSE TWO.

• They are whirlwinds.

• They are weaker than tornadoes.

• They are stronger than tornadoes.

• They form over the ocean.

Where are tornadoes most likely to occur?

• Central part of the US (the Great Plains)

• Hawaii

• East Coast

• West Coast

What is lightning?

• a giant spark of electricity in the atmosphere between clouds, the air, or the ground

• a giant spark of electricity that never touches the ground

• a giant spark of electricity in the atmosphere that comes from the ground but never touches the clouds

Is it possible to have thunder without lightning?

• No

• Yes

What causes thunder?

• lightning

• more thunder

• the ocean

• the moon

Does lightning strike from the sky down, or the ground up?

• Both

• sky down

• ground up

What happens to the ground when lightning strikes it?

• glassy rock

• lava

• rocks

• sand