الدرس 10 أ

Physics is the study of the fundamental forces and particles that make up the universe, as well as how matter and energy interact. It explores concepts like motion, gravity, electricity, and light. Physics provides the basis for understanding natural laws and is critical in technologies like computers, transportation, and medical devices, as well as in advancing knowledge about the universe.

A physician is a medical doctor who is trained and licensed to practice medicine, focusing on diagnosing, treating, and preventing a wide range of illnesses and injuries. Physicians can specialize in various fields such as internal medicine, pediatrics, or cardiology, or they may practice as general practitioners. They perform physical examinations, order and analyze medical tests to diagnose patients, prescribe medications, and create personalized treatment plans.

Chemistry is the scientific study of the composition, properties, and reactions of matter. Chemists explore how substances interact with one another, form new compounds, and undergo transformations. Chemistry is fundamental in fields like medicine, environmental science, and industry, as it helps create new materials, understand biological processes, and develop products from energy to pharmaceuticals.

Biology is the study of living organisms, including their structure, function, growth, and interactions with their environment. It covers a wide range of topics, from the molecular mechanisms within cells to the behavior of entire ecosystems. Biology helps us understand the diversity of life on Earth, how organisms adapt to their surroundings, and the processes that sustain life, such as metabolism, reproduction, and evolution.

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.

Zoology is the scientific study of animals, including their behavior, anatomy, physiology, and interactions with their environment. Zoologists research how animals adapt to their habitats, how they communicate, and how ecosystems function. Zoology also plays a role in conservation, studying endangered species and providing insights into how to protect animal biodiversity.

The guinea pig, also known as the cavy, is a small domesticated rodent that is often kept as a popular pet. Guinea pigs are native to South America and have been domesticated for thousands of years. They have a compact body with short legs, rounded ears, and no visible tail. Guinea pigs have a variety of coat colors and patterns, and they typically have dense fur that can be short or long, depending on the breed. They have large, expressive eyes and a rounded head with a distinctive snout. Guinea pigs are social animals that are known for their gentle and friendly nature, making them popular as pets, especially for children. They are herbivores and primarily eat hay, fresh vegetables, and a specially formulated guinea pig pellet diet.

A laboratory is a controlled environment where scientific experiments, research, and practical learning activities are conducted. It is equipped with tools, instruments, and materials needed for conducting tests, measurements, or experiments. Laboratories are commonly found in schools, colleges, and universities, especially in subjects such as science, chemistry, biology, and physics. They allow students and researchers to apply theoretical knowledge in hands-on experiments, fostering a deeper understanding of scientific principles and processes.