Earth Science

How many total planets do we have in our solar system?

• 8

• 7

• 9

What is the most accepted theory on the Origin of the Universe?

• Steady State Theory

• Big Bang Theory

• Oscillating Universe Theory

The idea of the "cosmic egg" was suggested by?

• George Gamow

• Edwin Hubble

• Georges Lemaitre

Which is the following is NOT a layer of the Earth?

• Lithosphere

• Core

• Atmosphere

In which atmospheric layer do we live?

• Exosphere

• Troposphere

• Meosphere

What is most likely found in nebula?

• planets

• salt crystals

• gas clouds

What is the thinnest layer of the Earth?

• crust

• mantle

• core

When you watch a volcano erupt molten rock, you are seeing____.

• magma

• lava

• igneous rock

This rock was formed when molten rock cooled into a solid. What type of rock is it?

• igneous rock

• metamorphic rock

• sedimentary rock

What is the age of our solar system?

• 4.6 million years old

• 14 billion years old

• 4.6 billion years old