8th Grade Science Review

Front

Where do hot spots occur?

Back

In the middle of tectonic plates.

Front

Which of the following statements is true?

Back

Unbalanced forces cause a change in motion.

Tags

NGSS.MS-PS2-2

Front

Which layer of the Earth is the most dense?

Back

Inner core.

Front

Gravitational potential energy depends on what two factors?

Back

Height and mass.

Tags

NGSS.MS-PS3-2

Front

What process occurs when a stream widens into a river over time?

Back

Erosion.

Tags

NGSS.MS-ESS2-2

Front

What is the definition of erosion?

Back

The process by which soil and rock are removed from the Earth's surface by wind or water flow.

Tags

NGSS.MS-ESS2-2

Front

What is gravitational potential energy?

Back

The energy an object possesses due to its position in a gravitational field, calculated as mass times height times the acceleration due to gravity.

Front

What are tectonic plates?

Back

Massive slabs of Earth's lithosphere that move and interact at their boundaries, causing geological activity.

Tags

NGSS.MS-ESS2-3

Front

What is the difference between mechanical and chemical weathering?

Back

Mechanical weathering breaks rocks into smaller pieces without changing their composition, while chemical weathering alters the chemical structure of the minerals.

Tags

NGSS.MS-ESS2-2

Front

What is the role of balanced forces?

Back

Balanced forces do not cause a change in motion; they keep an object at rest or moving at a constant speed.