Natural science

Science helps us learn about our world.

It looks at living things. This is called life science.

It also looks at the physical world. This includes stars and rocks. People use tools to study them. They look at how things move. They also study how things change. This helps us know what will happen next. Science is a great way to explore!

Natural science is a way to learn about our world.

Scientists use facts from what they see and test. This helps them understand and predict how nature works. They use math and logic to find laws of nature.

Natural science has two main branches. The first is life science, or biology. This is the study of living things.

It looks at everything from tiny cells to large groups of animals. Biology helps us learn about how species live and interact.

The second branch is physical science. This includes physics, which studies how things move and work. It also includes chemistry, the study of matter. Chemistry looks at atoms and how they change.

Another part is Earth science. This studies our planet, like rocks and weather. Astronomy is also a part of physical science. It looks at objects in space, like stars and planets.

Planetary science is a special field. It studies planets, moons, and even comets. Scientists use math and space tools to learn about them.

Natural science is a way to understand our world.

It focuses on describing and predicting how nature works. Scientists use evidence from what they see and test. This is called empirical evidence. They use tools like math and logic to explain things. These explanations are called the laws of nature.

To make sure their work is correct, they use peer review. This means other experts check the work. They also use reproducibility. This means others can do the same test to see if it works again.

Natural science is divided into two main branches. The first is life science, which we call biology.

Biology studies living things and how they act. It looks at everything from tiny cells to large groups of animals. It also studies how species were formed. Scientists look at how living things interact with their environment. This can happen on a very small scale or a very large scale. Some parts of biology look at the chemistry of life. Others look at the internal parts of a body.

The second branch is physical science. This includes several different fields. Physics studies the parts of the universe and how they interact.

It uses math to explain how forces work. Chemistry is also a part of physical science.

It is often called the central science. Chemistry studies matter at the level of atoms and molecules. It looks at how these tiny pieces react and change. Earth science studies our planet, including rocks and weather.

Astronomy studies objects in space, like stars and galaxies.

Many famous people helped build these sciences. In the 16th century, natural history began to classify plants and animals.

Later, people like Galileo Galilei and Isaac Newton studied nature differently. They debated using math versus using experiments. Robert Boyle helped develop the science of chemistry. He was known as the discoverer of gases. Antoine Lavoisier also helped by creating the theory of mass conservation. In the 19th century, biology became a unified science. This happened when scientists found things all living things share.

You can see natural science in many places today. Planetary science helps us learn about planets and moons.

It uses math and robots in space to find answers. Earth science helps us study the climate and our oceans. Even the study of medicine comes from biology. If you look at a tiny cell, you see biology. If you look at the stars, you see astronomy. All these parts work together to explain our huge world.

Natural science, also called empirical science, is the study of the physical world.

It focuses on describing, understanding, and predicting natural phenomena. Scientists achieve this by using empirical evidence. This evidence comes from careful observation and experimentation. To ensure scientific advances are valid, researchers use peer review. This is a process where other experts check the work. They also use reproducibility. This means other scientists can repeat an experiment to see if they get the same results. Natural science uses tools from formal sciences, like mathematics and logic. These tools turn information about nature into measurements. These measurements allow scientists to explain the "laws of nature."

Natural science is divided into two main branches: life science and physical science.

Life science is often called biology. It examines all living organisms. The scale of study in biology is massive. It can look at sub-component biophysics or complex ecologies. Physical science is further divided into several fields. These include physics, astronomy, Earth science, and chemistry. These branches can be split into even more specialized fields. Scientists use different methods to study these various areas. Some use math to model the universe, while others use microscopes to see tiny cells.

Biology studies the characteristics, classification, and behaviors of living things.

It also explores how species were formed and how they interact with their environment. In the 17th century, the invention of the microscope allowed for the study of microbiology. However, biology did not become a unified science until the 19th century. This happened when scientists discovered commonalities between all living things. Today, biology is split into many subdisciplines. Molecular biology studies the fundamental chemistry of life. Cellular biology examines the cell, which is the basic building block of life. Anatomy and physiology look at internal structures and functions. Ecology studies how different organisms interrelate.

Physical science includes chemistry, which is often called "the central science."

Chemistry connects the other natural sciences by studying matter at the atomic and molecular scale. It looks at collections of atoms like gases, molecules, crystals, and metals. Chemistry examines how these materials transform and react. This field grew from alchemy, which combined mysticism with physical experiments. Scientists like Robert Boyle, who discovered gases, helped develop modern chemistry. Antoine Lavoisier also contributed by developing the theory of the conservation of mass. Today, the chemical industry plays a huge role in the world economy.

Physics is another foundational branch of physical science. It studies the fundamental constituents of the universe. It also examines the forces and interactions between them.

Physics relies heavily on mathematics to quantify these principles. Key historical developments include Isaac Newton's theory of universal gravitation. Other major breakthroughs include Einstein's theories of relativity and the development of thermodynamics. Modern physics is very specialized. Researchers often focus on specific areas like quantum mechanics or optics. They no longer act as "universalists" who work in every area at once.

Earth science, or geoscience, covers all sciences related to our planet.

This includes geology, meteorology, and oceanography. While people have always interested themselves in minerals, economic geology and mineralogy developed in the 18th century. Paleontology blossomed in the 19th century. In the 1960s, the theory of plate tectonics changed Earth sciences significantly. Atmospheric science is also a major field. It studies the layers of the atmosphere from the ground to the edge of space. It can study patterns over a single day or over a century.

Planetary science, or planetology, is the study of planets and celestial bodies.

This includes terrestrial planets, gas giants, and ice giants. It also looks at moons, asteroids, comets, and dwarf planets. Scientists use both observational research and theoretical modeling. Observational research uses robotic spacecraft and remote sensing. Theoretical research uses mathematical modeling and computer simulations. Planetary science is interdisciplinary. It combines knowledge from astronomy, physics, and Earth sciences. It even explores exoplanets located outside our solar system.