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Sediment is the solid material that settles at the bottom of a liquid like water or wine. It is made of small pieces of rock, dirt, or organic matter that sink because they are heavier than the liquid.

A naturally raised area of land, smaller than a mountain.

A lake is a large area of water that is completely surrounded by land. It is usually much larger and deeper than a pond and contains fresh water, though some are salty.

A swamp is a low area of land that is always very wet or covered with water. It usually has many trees and plants growing in it and is often home to animals like frogs and alligators.

A mineral is a natural substance found in the earth that is not a plant or animal. It is often hard and can be used for building things or helping the body stay healthy.

Pollen is a fine powder, usually yellow, produced by flowers and trees. It is carried by wind or insects to other plants so they can produce seeds and fruit.

an omnivorous domesticated hoofed mammal.

A cliff is a very steep or vertical face of rock, often located at the edge of the sea or a mountain. It is usually high and can be dangerous to stand near the edge.

A thin piece of wood, often from a tree.

A large, flat area of land in very cold parts of the world, such as the Arctic. In this area, the ground is frozen and there are no trees, only small plants like moss.