2019 District Science

Front

What is basalt?

Back

Basalt is a dark, hard igneous rock formed from hardened lava, low in silica but rich in iron and magnesium.

Front

What two organisms make up a lichen?

Back

A lichen is a composite life form made up of algae and fungus.

Front

What is the mantle?

Back

The mantle is the largest layer of the Earth, about 1800 miles thick, composed of hot, dense rock that flows like asphalt.

Front

What is the troposphere?

Back

The troposphere is the atmospheric layer closest to the Earth's surface, where most weather occurs, extending upward around 6 to 10 miles.

Front

What is acceleration?

Back

Acceleration is a vector quantity that measures the rate of change of velocity, commonly measured in meters per second squared.

Front

What is an igneous rock?

Back

Igneous rock is formed from the solidification of molten rock (magma or lava).

Front

What is a symbiotic relationship?

Back

A symbiotic relationship is a close interaction between two different organisms, where at least one benefits.

Front

What is the Earth's crust?

Back

The Earth's crust is the outermost layer of the Earth, composed of solid rock and minerals.

Front

What is the outer core?

Back

The outer core is a layer of the Earth composed of liquid iron and nickel, located beneath the mantle.

Front

What is the inner core?

Back

The inner core is the Earth's innermost layer, composed of solid iron and nickel, under extreme pressure.