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 Earth's spheres and astronomy
- 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 Earth's spheres and astronomy
- 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 Earth's Spheres and Astronomy 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 Earth's Spheres and Astronomy chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any Earth's Spheres and Astronomy 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 Earth's spheres and astronomy unit of a standard Intro to Astronomy course. Topics covered include:
- How Earth's surface is shaped by its internal and external forces
- The four spheres of Earth: geosphere, hydrosphere, biosphere and atmosphere
- Interaction of Earth spheres
- Earth's internal layers: crust, mantle, core
- Studying Earth's interior structure
- Astronomy, the Earth's climate and the Milankovitch hypothesis
1. The Dynamic Earth: Internal & External Forces that Shape Earth's Surface
There are many geologic processes that shape the surface of the Earth. Not only do they build and destroy a variety of landscapes, but they also give us clues to the interior of the Earth and the forces that exist there.
2. The Four Spheres of Earth: Geosphere, Hydrosphere, Biosphere, and Atmosphere
Earth is made up of four distinct yet connect spheres. In this video lesson, you will learn about where each sphere is found on Earth, as well as some features commonly found in each.
3. Interactions of Earth's Spheres: Purpose and Examples
The four spheres of Earth drive all of its processes and support life on our unique planet. In this video lesson, you will see examples of how Earth's spheres interact with each other to form an overall complex and connected system.
4. How Scientists Study Earth's Interior Structure
We can't see what Earth's interior is made of, but scientists are able to study it in other ways. In this video lesson, you will learn how seismic activity helps us understand and describe the inner layers of the earth.
5. Four Stages of Planetary Development
This lesson will describe the four stage of planetary development. They are, from past to present, differentiation, cratering, flooding, and slow surface evolution.
6. Earth's Internal Layers: Crust, Mantle & Core
Earth is made up of several different layers, each with unique properties. In this video lesson, you will identify each layer of Earth and how it relates to Earth as a whole.
7. Seismic Wave: Definition, Types & Frequency
In this lesson, you will learn what seismic waves are, the various types of seismic waves, and their frequencies. You will learn about P-waves, S-waves, Rayleigh waves and Love waves. A short quiz will follow.
8. Plate Tectonics: A Unified Theory for Change of the Earth's Surface
After many years of trying to solve the mystery of the moving continents, enough data and evidence was collected to develop a unifying theory of how the surface of the earth changes. It's called plate tectonics.
9. Subduction Zone: Definition, Location & Example
This lesson will discuss the meaning of the term 'subduction zone,' and where they occur in terms of tectonic plate boundaries. A few examples will be included, and a short quiz will follow.
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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
- 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
- The Birth and Life of Stars: 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