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Science
PVA 4th Grade - Patterns of Earth's Features
| Canyons | deep, narrow areas surrounded by a mountain's steep sides. | |||
| Butte | a single hill that has steep sides and a flat top. | |||
| Pattern | something that appears or occurs again and again in the same way. | |||
| Faults | crack's in the Earth's crust. | |||
| Trenches | long, narrow, sunken areas in the ocean floor. | |||
| Mountains | are an elevated landform found on the Earth's surface. | |||
| Mountain ranges | are lines of mountains connected by high ground. | |||
| A plateau | is a large area of raised flat land that extends over a great distance. | |||
| Cliffs | are steep rock faces at the edge of a body of water. | |||
| Geologists | study mountains because they are one kind of landform that occurs in patterns across Earth's surface. | |||
| Mountains and volcanoes are common along the edges of Earth's | plates. | |||
| Earth's surface is divided into plates made of | rock | that crash together and form mountains and volcanoes. | ||
| Earthquakes and volcanoes occur along | faults, | or cracks in the Earth's crust. | ||
| Volcanoes | form at place where magma, or molten rock, reaches Earth's surface. | |||
| Volcanoes and earthquakes are common along a section of the Earth called | The Ring of Fire | found in the | Pacific | Ocean. |
| There are many | landforms | under the oceans. | ||
| Under the oceans you can find the following landforms: | trenches | canyons | mountains | volcanoes |