tsunami

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.

An amphibian is a type of animal that can live both on land and in water. Most amphibians, like frogs and salamanders, start their lives in the water and move to land as they grow older.

An asteroid is a large rock that travels through space and orbits the sun. It is much smaller than a planet and is mostly made of rock and metal.

Astronomy is the scientific study of stars, planets, and everything else in space. It is the branch of science that looks at how the universe works outside of Earth's atmosphere.

Atmospheric pressure is the weight of the air in the sky pressing down on the Earth. It changes depending on the weather and how high you are above the sea.

毛が濃くて大きくて力強い動物のことだよ。

ラクダは背中に1つまたは2つのコブがある大きな動物です。

カモフラージュは、周りの景色に溶け込んで姿を隠すことです。動物が敵に見つからないようにするために使われます。

森の一番上の層で、枝や葉っぱが集まっているところだよ。

峡谷は、切り立った崖に囲まれた深い谷のことです。長い時間をかけて川が岩を削ることで作られます。