Chapter 2

Why do places on Earth have daily periods of daylight and darkness?

a biome

A year is defined as _________ days.

__________ turns water vapor into a denser liquid or a solid state.

an area located at the mouth of a river

Which mountain range in under water?

a climate zone

Which of the following correctly lists Earth's oceans smallest to largest?

melted rock

One measure for comparing __________ is the average daily temperature.

What is the center of the Earth called?

Who was the scientist who invented a system that divided the Earth into climate zones?

The crust is made up of 16 enormous tectonic __________.

Where are you more likely to see an ice sheet?

narrow strip of land connecting two larger land areas

How long does it take plates to move enough to create land forms?

The sun's __________ causes Earth to constantly orbit around it.

imaginary line running through Earth's center

__________ cover most of Greenland and Antarctica.

Water contained inside the Earth's crust is called __________.

Cold, temperate climates have _________ summer seasons.

occurs on or about June 21 in the Northern Hemisphere

subsystem that consist of Earth's water

The _________ connects the Atlantic and Pacific Oceans.

process that produces safe drinking water

What percentage of the Earth's surface is water?

underwater plain that borders a continent

Which two continents are completely surrounded by water?

What is it called when day and night in both hemispheres are of equal length?

A _________ is the smallest of the ice masses.

Why are cities often warmer than areas in the countryside?