Easier (6-8)
Medium (8-10)
Harder (10-11)
100

This event happened in a forest in this very cold country.

Russia

100

What year did the Tunguska Event happen?

1908

100

Why was there no crater after the explosion?

It exploded in the air before hitting the ground

200

This event knocked down millions of these tall plants.

Trees

200

What is the name of the remote region in Siberia where it happened?

Tunguska

200
What is the reason that not very many people were hurt?

It happened in a remote area

300

The explosion happened in the sky, instead of this place where explosions would normally happen.

Ground

300

The explosion flattened about this many trees (hint: millions)

80 million

300

The energy of the blast has been compared to that of this type of powerful modern weapon.

A nuclear bomb

400

This is what people think exploded in the sky.

Meteor

400

Scientists believe the object exploded in the air instead of hitting the ground; this is called an air      

Airburst

400

This is what scientists study to learn about space rocks hitting Earth.

Impact events

500

The explosion was so strong it sounded like this loud thing you normally hear with rain.

Thunder

500

People didn't find a crater, which made this event this type of mystery

Unsolved

500

If the same event happened over a big city, this is what would likely happen.

Massive destruction

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