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Algae are simple plants that grow in or near water and do not have ordinary leaves or roots. They can be very small like green spots or very large like seaweed found in the ocean.

Fungi are a large group of living things, such as mushrooms, molds, and yeast, that grow on soil or old plants. They are different from plants because they do not use the sun to make food, but instead break down dead material.

A predator is an animal that hunts, kills, and eats other animals to survive. This word is also used to describe people or companies that take advantage of others.

Prey is an animal that is caught and killed by another animal for food. It is the animal that is hunted in nature.

A carnivore is an animal that gets its food from eating other animals. These animals are often called meat-eaters and have special teeth for hunting and eating flesh.

A herbivore is an animal that eats only plants, such as grass, leaves, and fruits. These animals do not eat meat or other animals.

A savanna is a large, flat area of land covered with grass and only a few scattered trees. It is mostly found in hot regions, such as Africa and South America, and supports a wide variety of wildlife.

An estuary is the wide part of a river where it joins the sea. It is a unique place where fresh water from the river mixes with salty water from the ocean.

Undergrowth refers to the small plants, bushes, and shrubs that grow on the ground beneath the taller trees in a forest or wood. It is often dense and can make walking through the area difficult.

Germination is the process where a seed starts to grow into a new plant. It happens when the seed has enough water, the right temperature, and oxygen.