2단원 - 2H

Astronomy is the scientific study of celestial bodies like stars, planets, moons, and galaxies, as well as the phenomena that occur beyond Earth's atmosphere. It involves observing the universe to understand its origins, structure, and evolution. Astronomy not only helps us learn about the cosmos but also provides insights into the fundamental laws of physics and the potential for life beyond Earth.

Handball is a team sport played indoors, where two teams of seven players each try to score goals by throwing a small ball into the opponent's net. The game is played on a rectangular court, and players pass, dribble, and shoot the ball using their hands. They are not allowed to walk or run with the ball for long distances without dribbling. The team with the most goals at the end of the game wins. Handball is known for its fast pace, skillful passing, and high-scoring action. It is popular in countries like Denmark, France, and Germany.

A choir is a group of singers who perform together, usually led by a conductor. Choirs can vary in size, from small ensembles to large groups, and they often sing in harmony, with different voice parts such as soprano, alto, tenor, and bass. They perform a wide range of music, including classical, gospel, and contemporary songs, and can be found in places like churches, schools, and community organizations. Choirs practice regularly to prepare their performances and aim to produce a unified and harmonious sound.

An orchestra is a large group of musicians who play various instruments together to perform a wide range of music, typically classical. It includes sections of strings, woodwinds, brass, and percussion, each contributing to the ensemble's rich and dynamic sound. Orchestras are led by a conductor, who guides the musicians in interpreting and delivering the music cohesively. The size and composition of an orchestra can vary, allowing it to perform everything from intimate chamber works to grand symphonic pieces.

Science is the study of the natural world through observation, experimentation, and reasoning. It seeks to understand how things work, from the smallest particles to large systems, by asking questions and testing ideas. Science covers a wide range of fields, such as biology, physics, and chemistry. It uses systematic methods to gather knowledge, make discoveries, and develop technologies that improve lives. Science is important for understanding the world around us and solving problems in health, technology, and the environment.