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Discover How Stars Work with This Comprehensive Video Worksheet

How the Universe Works Stars Video Worksheet

This page provides an interactive video worksheet and glossary to help you explore the science behind stars. Learn about star formation, evolution, and their impact on the universe. Ideal for students and astronomy enthusiasts looking for a clear and structured learning experience.

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Key Terms & Definitions

Essential concepts and terminology to understand this topic

Star

A luminous ball of gas, primarily hydrogen and helium, held together by gravity and powered by nuclear fusion.

Related Terms:Celestial Body

Nebula

A vast cloud of gas and dust in space, often the birthplace of stars.

Related Terms:Stellar Nursery

Nuclear Fusion

The process where hydrogen nuclei combine to form helium, releasing energy and powering stars.

Related Terms:Stellar Energy

Main Sequence

The phase in a star's life where it fuses hydrogen in its core, representing most of its lifespan.

Related Terms:Stable Star Phase

Supernova

A massive explosion marking the end of a massive star's life, often leading to the formation of neutron stars or black holes.

Related Terms:Stellar Explosion

White Dwarf

A dense, compact remnant of a low- to medium-mass star that has exhausted its nuclear fuel.

Related Terms:Stellar Remnant

Neutron Star

A small, incredibly dense star composed almost entirely of neutrons, formed after a supernova.

Related Terms:Compact Star

Black Hole

A region of space where gravity is so strong that nothing, not even light, can escape it.

Related Terms:Singularity

Red Giant

A late stage in a star's life when it expands and cools after exhausting the hydrogen in its core.

Related Terms:Aging Star

Hertzsprung-Russell Diagram

A graph that plots stars based on their luminosity and temperature, used to study stellar evolution.

Related Terms:Star Classification Chart

Stellar Nucleosynthesis

The creation of heavier elements through nuclear fusion within stars.

Related Terms:Element Formation

Binary Star System

A system where two stars orbit a common center of mass.

Related Terms:Double Star System

Light Year

The distance light travels in one year, approximately 9.46 trillion kilometers.

Related Terms:Astronomical Distance

Electromagnetic Spectrum

The range of all types of electromagnetic radiation, including visible light and other wavelengths emitted by stars.

Related Terms:Radiation Spectrum

Gravitational Collapse

The contraction of a massive object due to the force of gravity, often leading to star formation.

Related Terms:Formation Process

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