Earth Science 2024 Review

Front

What is the effect of adding salt to water?

Back

Adding salt to water increases its boiling point.

Front

What are the four layers of the Earth?

Back

The four layers of the Earth are the crust, mantle, inner core, and outer core.

Front

Which layer of the Earth is the densest and hottest?

Back

The core is the densest and hottest layer which provides energy for convection.

Front

What process produces energy in the Sun's core?

Back

Fusion of hydrogen nuclei (protons) into helium nuclei.

Front

How does volcanic ash affect global temperatures?

Back

Volcanic ash decreases global temperatures by reflecting sunlight back into space.

Front

What gas released during a volcanic eruption contributes to acid rain?

Back

Sulfur Dioxide.

Front

What is convection in the context of Earth's layers?

Back

Convection is the process of heat transfer through the movement of fluids, influenced by density and temperature differences.

Front

What is nuclear fusion?

Back

Nuclear fusion is the process where two light atomic nuclei combine to form a heavier nucleus, releasing energy.

Front

How does the density of water change with temperature?

Back

Water is denser in cold temperatures than in hot temperatures.

Front

What is the significance of a pH level of 7 in water?

Back

A pH level of 7 indicates that water is neutral, not acidic or basic.