About This Chapter
1. Big Bang Theory of the Universe: Definition & Overview
In this lesson, you'll learn about the most current theory on how the universe began, the Big Bang Theory. You'll learn about the theories about the origin of the universe that came before the theory as well as the events, discoveries, and scientists involved in the formulation of it.
2. Black Hole: Definition & Types
In this lesson you will learn the definition of a black hole, how black holes form, and what types of black holes are out there. You will also learn about the two types of classifications for black holes which depend on their basic properties.
3. Force Field: Definition, Theory & Example
If you're a fan of science fiction, you may be familiar with a type of force field. But the idea of force fields is also used in physics. Use this lesson to learn about force fields, along with scalar and vector fields, and see some examples of each.
4. What are Asteroids? - Facts & Explanation
Millions of asteroids dot our solar system, bumping and crashing into each other as they orbit the sun. This lesson will define and describe the properties of asteroids and how they have shaped the Earth.
5. What are Planets? - Facts & Definition
In this lesson, you'll learn the official definition of a planet, how planets are formed, and about the two types of planets found in our solar system: terrestrial planets and gas giants.
6. What is a New Moon? - Definition & Phases
Once, or sometimes twice, a month, the moon disappears from our view. This is called a new moon, and it happens when the illuminated side of the moon faces away from us. You'll learn all about it in this lesson.
7. What is a Constellation? - Definition, Facts, Formation & Examples
In this lesson, you will learn what a constellation is and how it is different to a star cluster. You will also learn how star clusters are formed and go over a few examples of both constellations and star clusters. A short quiz will follow.
8. What is a Lunar Eclipse? - Definition, Facts & Frequency
In this lesson, you will learn what a lunar eclipse is and how frequently lunar eclipses occur. You will also learn facts related to lunar eclipses, which are studied by scientists all over the world.
9. What is a Solar Eclipse? - Definition & Overview
A solar eclipse occurs as the moon passes in front of the sun, resulting in the earth falling into the shadow of the moon. This lesson explains how and why solar eclipses occur.
10. What is an Eclipse? - Definition & Types
This lesson will explain what an eclipse is and the various types of eclipses, particularly from the vantage point of the earth. A short quiz will follow.
11. What is Dark Matter? - Theory & Energy
In this lesson, you will learn what dark matter is and the latest theories about the origin of dark matter. You will also learn about dark energy and find out if dark matter and dark energy are related to each other.
12. What is Extraterrestrial Life? - Forms & Signs
This lesson will discuss the possible forms that extraterrestrial life might take and the signs we could look for to detect extraterrestrial life. A short quiz will follow.
13. What is Orbit? - Planets & Satellites
This lesson talks about what an orbit is and defines some common terms associates with orbit. We also talk specifically about orbits of planets and satellites.
14. Absolute Zero: Temperature & Definition
There is a limit to how cold matter can get. Learn more about what happens when the temperature gets down to absolute zero and cannot get any lower. Test your knowledge with quiz questions.
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