What Killed the Dinosaurs?

How long ago did the dinosaurs rule the Earth.

• 6500 years ago?

• 650,000 years agao

• 6.5 billion years ago.

• 650 years ago.

What killed the dinosaurs?

• An asteroid

• A virus

• Acid rain

• A super nova.

How fast was the asteroid travelling?

• 4000 miles per hour.

• 40,000 miles per hour.

• 6500 miles per hour

• 60 miles per hour.

What happened to the granite rocks from the impact?

• They were turned to putty.

• They were "shocked."

• They were confused.

• They were annihilated.

What do geologists (rock scientists) call the rock layer in the fossil record that was formed by the rock that smashed into the Earth.

• K-T boundary

• ABC boundary

• X-Y boundary

• "Cookie" boundary

When a rock that big and moving that fast smacks into the earth's surface, what happens to the granite?

• It becomes a gas.

• It becomes jelly.

• It becomes a liquid.

• It does a dance.

Scientist studied ________ to figure out what happened when the rock from space smashed into the earth.

• storms

• hurricanes

• TNT

• atomic bomb blasts

Asteroid put a _________ mile deep crater into the Earth.

• 5

• 15

• 20

• 40

The blast blew everything away within ____________ miles.

• 6.5

• 600

• 200

• 40,000

The blast created a ____________ rock cloud that completely blanketed the world.

• vaporized

• heavy

• liquid

• thin