Science

Science is a system of knowledge that builds and organizes information in the form of testable explanations and predictions.

Is science reliable?

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Hydrogen (H) 5 (61)

Hydrogen is a chemical element with the symbol H and atomic number 1, making it the lightest and most abundant element in the universe. It consists of a single proton and a single electron in its most common isotope, protium. Hydrogen plays a central role in cosmology, stellar physics, chemistry, energy systems, and biological processes. […]

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Ecology 4.4 (27)

Ecology is the scientific study of interactions among organisms and their physical environment. It examines the distribution, abundance, and relationships of living organisms, as well as the processes that govern ecosystems. The discipline bridges biology, environmental science, and earth systems, aiming to understand how life functions, persists, and responds to both natural and anthropogenic changes.

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Species 5 (47)

A species is the fundamental unit of biological classification, representing a group of organisms that share common characteristics and, under natural conditions, are capable of interbreeding to produce fertile offspring. The concept of species lies at the core of taxonomy, evolutionary biology, ecology, and conservation science. Although the term appears straightforward, defining what constitutes a

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Habitat 5 (1)

In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus “habitat” is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which

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Hydrosphere 5 (17)

The hydrosphere refers to all the water present on, under, and above the surface of the Earth. This includes oceans, rivers, lakes, groundwater, glaciers, polar ice caps, atmospheric water vapor, and even water contained in living organisms. The hydrosphere plays a crucial role in regulating climate, supporting life, shaping geological features, and driving the water

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Carnegie Mellon University 5 (328)

Overview Carnegie Mellon University (CMU) is a private research university in Pittsburgh, Pennsylvania, United States. Established in 1900 by philanthropist Andrew Carnegie as the Carnegie Technical Schools, the institution became the Carnegie Institute of Technology in 1912. In 1967, it merged with the Mellon Institute of Industrial Research, forming what is now Carnegie Mellon University.

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Microprocessor 5 (67)

A microprocessor is a programmable integrated circuit that performs the central processing functions of a computer within a single semiconductor chip. It executes instructions, performs arithmetic and logic operations, manages data flow, and coordinates system components. In essence, it is the “brain” of modern electronic systems. Since their emergence in the early 1970s, microprocessors have

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Electrical Engineering 5 (2)

Electrical Engineering (EE) is a core branch of engineering that focuses on the study, design, and application of systems and devices that use electricity, electronics, and electromagnetism. It encompasses a vast range of subfields, from the generation and distribution of electrical power to advanced electronic systems, communications, and control technologies. Electrical engineering is foundational to

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List of Chemical elements 4.8 (73)

A list of chemical elements is an organized catalog of the known fundamental substances that consist of atoms defined by a specific number of protons in their nuclei. Each element represents a distinct form of matter and is arranged within the periodic table according to atomic number, electron structure, and recurring chemical properties. As of

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