A beach is the sandy edge of the sea or a lake. A beach is sometimes called the shore. People like to go down to the beach and sit in the sun, make sandcastles or go swimming.
A cave is a hole in the side of a hill or mountain that is big enough for people or animals to get inside. Many animals, like bears and bats live in caves.
A city is a place where there is a very large number of buildings and houses close together. A city may have many millions of people living in it. The city in the picture is in Japan, and is called Tokyo.
A crater is a large, circularhole in the ground that could have been caused by several different things. Craters can be many kilometers wide and very deep.
Craters are found on top of volcanoes, and they can be caused by meteors hitting the Earth. They are sometimes caused when the ground collapses above a large underground chamber like an old mine or a cave.
A desert is a large area where hardly any rain falls. Considering how little water there is in a desert, there is an amazing variety of life in most deserts, such as many kinds of cactus and a huge variety of reptiles and insects.
An earthquake is a sudden release of energy under the Earth's surface, like a sudden cracking along a fault line. Earthquakes can sometimes be caused by volcanoes. Earthquakes can cause severe shaking of the ground, which makes building buildings fall down and roads and bridges to crack and break.
