8th Grade 1st Semester Final Study Guide

Front

What is evolution?

Back

Evolution is the process by which species adapt to their environment over time, leading to changes in their traits and characteristics.

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What are fossils?

Back

Fossils are the preserved remains or traces of organisms from an earlier geological period.

Front

What are atoms?

Back

Atoms are the basic units of matter that combine to form molecules and compounds.

Front

What does it mean if the same sequence of rock layers is observed over a large area?

Back

It indicates that a large deposit of rock formed over a large area, suggesting similar conditions of formation.

Front

Where are electrons located in an atom?

Back

Electrons are located outside of the nucleus and have a negative charge.

Front

What is a mineral?

Back

A mineral is a naturally occurring inorganic solid with a definite chemical composition and a crystalline structure.

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from the accumulation and compaction of mineral and organic particles.

Front

What is the significance of the rock cycle?

Back

The rock cycle describes the continuous process of rock formation, breakdown, and reformation, illustrating the dynamic nature of Earth's crust.

Front

What is the difference between a rock and a mineral?

Back

A rock is a solid aggregate of one or more minerals, while a mineral is a specific substance with a defined chemical composition.

Front

What is the role of magma in rock formation?

Back

Magma cools and solidifies to form igneous rocks, and as it cools, its atoms combine into compounds that form minerals.