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www.merriam-webster.com/dictionary/river

River definition is - a natural stream of water of usually considerable volume. How to use river in a sentence. ... Kids Definition of river. 1: a natural stream of water larger than a brook or creek. 2: a large stream or flow a river of mud. Keep scrolling for more. More from Merriam-Webster on river ...

www.dictionary.com/browse/river

A river and its tributaries form a drainage basin, or watershed, that collects the runoff throughout the region and channels it along with erosional sediments toward the river. The sediments are typically deposited most heavily along the river's lower course, forming floodplains along its banks and a delta at its mouth.

www.ducksters.com/geography/worldrivers.php

A river is a flowing, moving stream of water. Usually a river feeds water into an ocean, lake, pond, or even another river. Rivers can vary in size and there is no hard definition or rule on how big a flow of water must be to be categorized as a river. Water from a river can come from rain, melting ...

kids.britannica.com/kids/article/geography/353172

Geography is a science that deals with Earth’s surface. People who study geography are called geographers. Geographers are interested in Earth’s physical features, such as mountains, deserts, rivers, and oceans. They are also interested in the ways that people affect and are affected by the natural world.

kids.britannica.com/kids/article/tributary/476329

A tributary is a stream or river that flows into and joins a main river. It does not flow directly into the sea. The place where the tributary and the main river meet is called a confluence. The origins of a tributary are called its source. This is the place where the water begins its journey towards the ocean or sea.

www.kids-world-travel-guide.com/geography-for-kids.html

Geography for Kids: Geography is the science of the Earth’s surface, its atmosphere and its features. This science informs us more about our planet and the world we live in. We learn about different places, the continents and countries as well as the oceans, rivers, deserts or mountains on our planet. However, we do not only look at facts ...

www.cangeoeducation.ca/.../classroom_activities/river_system.asp

What is a River System? Every river is part of a larger system—a watershed, which is the land drained by a river and its tributaries. Rivers are large natural streams of water flowing in channels and emptying into larger bodies of water. This diagram shows some common characteristics of a river system.

www.ducksters.com/science/earth_science/erosion.php

Rivers - Rivers can create a significant amount of erosion over time. They break up particles along the river bottom and carry them downstream. One example of river erosion is the Grand Canyon which was formed by the Colorado River. Waves - Ocean waves can cause the coastline to erode. The shear energy and force of the waves causes pieces of ...

www.reference.com/science/river-source-a25cf12fa09fa0fa

What Is a River Source? A river source is the place from which a river begins to flow. Types of sources include lakes, bogs, springs, streams, collections of snow or rainwater, glaciers, swamps and other rivers. Sources for rivers are typically found at higher elevations than downstream portions of the river. A river or stream that flows into a ...

www.merriam-webster.com/dictionary/geography

Kids Definition of geography. 1: a science that deals with the location of living and nonliving things on earth and the way they affect one another. 2: the natural features of an area the geography of the western United States. Keep scrolling for more. More from Merriam-Webster on geography ...