APES Unit 4 Vocab

The geologic materials from which soil horizons form.

Is formed of weathered rock, with some organic material; often referred to as topsoil.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-3

A vertical section of the soil that is exposed by a soil pit

These separated into four groups: gravel, sand, silt, and clay.

Can be retained on soil particle surfaces. Negative charges on the surfaces of soil particles bind positively-charged atoms or molecules , but allow these to exchange with other positively charged particles in the surrounding soil water.

Lowest densest part of the earths atmosphere in which most weather changes occur and temperature generally decreases rapidly with altitude and which extends from the earth surface to the bottom of the stratosphere at about 7 miles high.

The second layer of the atmosphere as you go upward.

Burns up most meteors and asteroids before they are able to reach the earth's surface. … Is the coldest atmospheric layer surrounding the earth. It becomes cold enough to freeze water vapor in its atmosphere into ice clouds.

The part of the earths atmosphere that begins at about 50 miles above the earths surface, extends to outer space, and is characterized by steadily increasing temperature with height.

The uppermost region of earths atmosphere as it gradually fades into the vacuum of space