Earth History 2

The Geologic Time Scale is a record of what?

• old geologists
• sweet geology music
• the known history of rocks and fossils
• a list of every living thing ever

types of rock that are formed by the deposition of material at the Earth's surface and within bodies of water.

• sedimentary rock

• index fossil

• metamorphic rock

• cast fossil

formed through the cooling and solidification of magma or lava.

• igneous rock

• metamorphic rock

• The Rock

• minerals

type of rock which has been changed by extreme heat and pressure

• metamorphic rock

• mold fossil

• volcano

• igneous rock

states that younger rock is found above older rock when comparing undisturbed sedimentary rock layers

• law of superposition

• trace fossil

• matter can't be created or destroyed

• atoms

method of determining the age based on measuring radioactive elements

• radioactive dating

• relative dating

• teenage dating

• no dating

determination of the age of a rock based on the surrounding evidence

• relative dating

• radioactive dating

• done dating

• molecules

a crack in the Earth's crust

• fault

• igneous rock

• intrusion

• electron

Ice core

• A long cylinder of ice obtained from drilling through ice caps used to study past climates and atmospheres

• broken ice chips that are best used to cool grape soda

• atoms that don't move and remain electrons when exposed to nuclear physical changes

• a lot of reading. Did you read this one too? Good, cause the answer is all about climates and atmosphere

A technique used to determine the actual age of a fossil

• relative dating

• absolute dating or radioactive dating

• rock layers

• index fossils