Earth Science Questions

Rock formed from magma or volcanic lava is called _____.

Rock that forms when layers of sediment and organic material harden is called _____.

A hard, natural substance made of one or more minerals that contain organic materials is called:

The center of the earth is called the _____.

The thin outer layer of the earth is called the _____.

The characteristic of a mineral to break along smooth, straight lines or into flat sheets is called ______.

A substance made of things that were never alive is _____.

An inorganic substance found naturally in the earth is called _____.

Most of the earth's mass is in the _____.

The color of the mark made when a mineral sample is rubbed on a harder surface is called the _____.

When studying soils we are concerned with Soil ____, ____, ____ & ____ (4)

Soil Structure relates to the ____ or ____ of soil particles into aggregates or peons

Methods of Determining Soil Classes- USDA Lab method

The greater the rainfall and humidity the _____ the weathering

At first tillage improves ____ ___ but over time tillage destroys structure

Soil _____ & _____ both determine the supply of H20, Air, Nutrients & Heat

How many continents are on earth?

According to Hillel, most crop plants (corn, soybean, wheat etc.) are classified as:

Natural (i.e., unpolluted) rainwater has a pH<7 due to the fact that it contains:

What happens to density, pressure and temperature as you go deeper into the earth?