About This Chapter
Who's it for?
Anyone who needs help learning or mastering Intro to Astronomy material will benefit from taking this course. There is no faster or easier way to learn introductory astronomy. Among those who would benefit are:
- Students who have fallen behind in understanding the birth and life of stars
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning science (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about the birth and life of stars
- Students who struggle to understand their teachers
- Students who attend schools without extra science learning resources
How it works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the birth and life of stars chapter exam.
Why it works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the birth and life of stars chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any birth and life of stars question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
This chapter helps students review the concepts in a birth and life of stars unit of a standard Intro to Astronomy course. Topics covered include:
- Interstellar medium
- Emission, dark and reflection nebulae
- How interstellar medium helps form stars
- Young stellar objects and protostellar disks
- Nuclear fusion and star formation
- Star formation of main sequence, dwarf and giant stars
1. What is the Interstellar Medium?
We'll explore something known as the interstellar medium, the birthplace of stars around our universe. You'll learn what it is made of, what interstellar dust is, and why it is there in the first place.
2. Young Stars & Stellar Associations
This lesson will describe the concept of a stellar association for you and how it differs from a star cluster. You'll also learn about the three general kinds of stellar associations: R associations, T associations, and OB associations.
3. Emission, Dark, and Reflection Nebulae
Did you ever hear about the famous Horsehead Nebula? Do you know why it looks dark like that and why the colors around it are such a pretty pink and blue? You'll definitely find out in this lesson as we explore emission, reflection, and dark nebulae!
4. How Does the Interstellar Medium Help Form Stars?
This lesson will describe how the interstellar medium plays a role in the earliest phases of the formation of stars. We'll define what a protostar is, how gravity is important, and what a cocoon is in an astronomical sense.
5. Young Stellar Objects and Protostellar Disks
Birth lines, bipolar flows, protostellar disks, and young stellar objects. What do these have to do with star formation? How do they clue us into planetary formation? Check this lesson out for that and lots more info.
6. Nuclear Fusion & Star Formation
This lesson will explain how the processes of stellar formation leads to nuclear fusion. We'll also define nuclear fusion and hydrostatic equilibrium, and find out why temperature is so important to all of this.
7. Star Formation: Main Sequence, Dwarf & Giant Stars
Learn how stars are born, beginning with a protostar. Then learn about stars in later stages of life, including main sequence stars, brown dwarfs, red giants, and black holes.
8. H-R Diagram: Definition & Purpose
The Hertzsprung-Russell provides important information about stars such as color, temperature and luminosity. Check out which stars are blue, hot and red, and which ones are so cool they're in a class by themselves.
9. What is a Radiation Zone?
Did you know that inside of the Sun there are different layers where energy can travel? Explore this lesson to learn about one of those layers called the radiation zone. Discover what a radiation zone is and its role inside the Sun.
10. What is Apparent Brightness?
Looks can be deceiving. This old phrase is particularly true when talking about apparent brightness. In this lesson, we will define apparent brightness, discuss how scientists use it when studying stars, and point out a major drawback.
11. What is a Binary Star System?
Our solar system, with its single sun, is actually quite rare. Most star systems contain solar twins, or binary stars. Read on to learn more about these interesting star systems and then check your understanding with a short quiz.
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Other chapters within the Intro to Astronomy: Help and Review course
- The History of Astronomy: Help and Review
- How Scientists Think and Work: Help and Review
- Matter, Energy, and Astronomy: Help and Review
- Light in Astronomy: Help and Review
- Newton's Laws in Astronomy: Help and Review
- Rotational Motion and Astronomy: Help and Review
- Orbits, Tides, and Gravity: Help and Review
- Relativity in Time and Space: Help and Review
- Conservation Laws in Astronomy: Help and Review
- Earth's Spheres and Astronomy: Help and Review
- The Earth, Sky, and Moon: Help and Review
- The Moon's Form and Phases: Help and Review
- The Atmosphere on Earth and Other Planets: Help and Review
- Influences on Climate: Help and Review
- The Sun and Energy: Help and Review
- Star Types and Significance: Help and Review
- Measurement of Star Qualities: Help and Review
- Star Death and Stellar Remnants: Help and Review
- Formation of the Solar System: Help and Review
- Galaxies, Stars and Solar Systems
- Components of the Solar System: Help and Review
- Small Celestial Bodies in the Solar System: Help and Review
- The Milky Way Galaxy: Help and Review
- Characteristics of Galaxies: Help and Review
- Life & the Universe: Help and Review
- Navigation and Timekeeping in Astronomy: Help and Review
- Telescopes: Help and Review