About This Chapter
TASC Science: The Universe & Its Stars - Chapter Summary
This chapter gets you familiar with key content such as the origins of the universe and evidence for the Big Bang theory through engaging video lessons. You'll also get acquainted with how energy moves within the sun. More material that you'll see in this TASC Science prep chapter includes:
- Nuclear fusion and the formation of stars
- Measurement of the distance to a star
- Star types by size, color, and life cycle
- Solar radiation and its effects
- The Doppler Effect
- The sun's structure and sunspots
- Stages of the sun's life cycle
Prepare for the exam by watching these short videos and studying the corresponding lesson transcripts. The effective structure of each transcript features subheadings and bold key terms to clearly break down the respective lesson topic.
Objectives of the TASC Science: The Universe & Its Stars Chapter
The TASC Science exam establishes whether your subject-matter knowledge meets criteria set in the Next Generation Science Standards (NGSS). The information you learn in this chapter will fall under the Earth and space science content area on the exam, which is one of three major content areas and asks roughly 28% of the total questions on the science exam. There are nearly 50 multiple-choice questions on the TASC Science exam and a constructed-response question. The computer-based exam also features a single technology-enhanced question.
1. Structure of the Sun
Discover the layers of the sun, including the core, radiative zone, convective zone, photosphere, chromosphere, and corona. Find out which layers you can see from Earth. Investigate what sunspots and solar flares are.
2. Stages of the Sun's Life Cycle
Discover our sun, the provider of energy for life on Earth. Learn how the sun was born, how it lives as a main sequence star, how it will age into a red giant and how it will die as a white dwarf.
3. How Energy Moves Within the Sun
This lesson will describe how energy is carried from the inner reaches of the Sun, through the radiative zone, then the convective zone, and finally into space.
4. What is Solar Radiation? - Definition & Effects
The sun plays an important role to us on Earth. It provides many things such as light and warmth. But, what is solar radiation and how does it affect us? In this video lesson, you'll learn about solar radiation, how it allows us to survive, and the influence it has on our global climate.
5. Kirchhoff's Laws and Star Spectra
This lesson will define for you three laws associated with spectra and how they relate to the composition of stars, as well as how they relate to atoms and wavelengths.
6. Types of Stars by Size, Color and Life Cycle
Learn to identify the different sizes and colors of stars and how they relate to the star life cycle. In this lesson, we'll talk about spectral classification, how many stars there are of each type and the approximate color of the different classes of stars.
7. The Doppler Effect and Star Spectra
This lesson will outline what the Doppler effect is using a very familiar example, then parlay that knowledge into understanding how the Doppler effect is used in astronomy.
8. Measuring The Distance to a Star
This lesson will tell you how astronomers can measure the distance to a star and how it relates to the way surveyors measure distances to landmarks right here on Earth.
9. The Brightness Of Stars
This lesson will define and describe important terms related to a star's brightness, including luminosity, intrinsic brightness, apparent brightness, and more.
10. Origins of the Universe: The Big Bang and Expanding & Contracting Universes
Students will learn the origins of the universe, the Big Bang theory, the timeline of the universe, how the universe is still expanding to this day, and what astronomers expect the universe to look like in the future.
11. Evidence for the Big Bang Theory: Background Radiation, Red-Shift and Expansion
Discover what evidence exists to support the Big Bang theory of the birth of the universe. Learn how cosmic background radiation, the red shift of light and the ongoing expansion of the universe led scientists to believe that the universe was started with the Big Bang.
12. 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.
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Other chapters within the TASC Science: Prep and Practice course
- TASC Science: Structure & Function of Living Things
- TASC Science: Growth & Development of Organisms
- TASC Science: Matter & Energy Flow in Organisms
- TASC Science: Interdependence in Ecosystems
- TASC Science: Cycles of Matter & Energy Transfer in Ecosystems
- TASC Science: Ecosystem Dynamics, Functioning & Resilience
- TASC Science: Social Interactions & Group Behavior
- TASC Science: Biodiversity & Humans
- TASC Science: Developing Environmental Solutions
- TASC Science: Gene Inheritance
- TASC Science: Variation of Traits
- TASC Science: Evidence of Common Ancestry & Diversity
- TASC Science: Natural Selection & Adaptation
- TASC Science: Earth & the Solar System
- TASC Science: Earth's Formation & Plate Tectonics
- TASC Science: Radiometric Dating
- TASC Science: Earth Materials & Systems
- TASC Science: Water & Earth's Surface Processes
- TASC Science: Weather & Climate
- TASC Science: Natural Resources
- TASC Science: Natural Hazards
- TASC Science: Human Impacts on Earth Systems
- TASC Science: Structure & Properties of Matter
- TASC Science: Chemical Reactions
- TASC Science: Nuclear Processes
- TASC Science: Forces & Motion
- TASC Science: Types of Interactions
- TASC Science: Types of Energy
- TASC Science: Conservation of Energy & Energy Transfer
- TASC Science: Wave Properties
- TASC Science: Electromagnetic Radiation
- TASC Science: Information Technologies & Instrumentation
- TASC Science Flashcards