Unit 1: Earth's History Prior knowledge

Which layer of Earth has the least denisty?

• Magma

• crust

• core

• mantle

Which rock type is made from volcanic eruptions and lava?

• gemstones

• sedimentary

• metamorphic

• igneous

What process creates small sediments such as sand?

• waves and water

• weathering and erosion

• mining

• artifical intelligence

Which rock type is made from pressure and heat?

• sedimentary

• metamorphic

• igneous

• gummi bears

what does extinction mean?

• when you exit the building

• fossils

• an endangered animal

• a living thing no longer exisits on earth

how long do fossils take to form?

• hundreds of years

• thousands of years

• millions of years

• 2 decades

Scientists can use the fossil record to show how the environment and climate used to be different in the past based on the types of animals they find fossilized

• True

• False

Continents have only move by 100 kilometers in the last 500 million years

• True

• False

How old is Earth?

• 46 million years old

• 400,000 years old

• 400 million years ol6

• 4.6 billion years old

Which is not a continent?

• Africa

• Indonesia

• Australia

• Europe