Difference between the solar system-the galaxy


Assignment:

Chapter 1--Science and the Universe: A Brief Tour

Be able to put various things in our universe in order from closest to farthest, and from smallest to largest.

Explain the difference between the solar system, the galaxy, and the universe.

Talk about how big the universe is.

Chapter 2--Observing the Sky: The Birth of Astronomy

Define the main features of the celestial sphere

Explain the system astronomers use to describe the sky

Describe how motions of the stars appear to us on Earth

Describe how motions of the Sun, Moon, and planets appear to us on Earth

Understand the modern meaning of the term constellation

Chapter 3--Orbits and Gravity

Explain Kepler's first two laws of planetary motion

Describe Newton's three laws of motion

Define mass, volume, and density and how they differ

Explain what determines the strength of gravitt

Explain how an object (such as a satellite) can be put into orbit around Earth

Explain how an object (such as a planetary probe) can escape from orbit

Chapter 4--Earth, Moon, and Sky

Explain how right ascension and declination are used to map the sky

Describe how the tilt of Earth's axis causes the seasons

Understand how calendars vary among different cultures

Explain the cause of the lunar phases

Understand how the Moon rotates and revolves around Earth

Describe what causes tides on Earth

Explain why the amplitude of tides changes during the course of a month

Describe what causes lunar and solar eclipses

Chapter 5--Radiation and Spectra

Understand the bands of the electromagnetic spectrum and how they differ from one another

Understand how each part of the spectrum interacts with Earth's atmosphere

Explain how astronomers learn the composition of a gas by examining its spectral lines

Discuss the various types of spectra

Describe the structure of atoms and the components of nuclei

Explain the behavior of electrons within atoms and how electrons interact with light to move among energy levels

Explain how emission line spectra and absorption line spectra are formed

Explain why the spectral lines of photons we observe from an object will change as a result of the object's motion toward or away from us

Describe how we can use the Doppler effect to deduce how astronomical objects are moving through space

Chapter 6--Astronomical Instruments

Describe the main functions of a telescope

Recognize the largest visible-light and infrared telescopes in operation today

Discuss the factors relevant to choosing an appropriate telescope site

Why do astronomers use spectrometers?

Can we "hear" radio waves?

Identify the world's largest radio telescopes

List the advantages of making astronomical observations from space

Explain the importance of the Hubble Space Telescope

Chapter 7--Other Worlds: An Introduction to the Solar System

Describe how the objects in our solar system are identified, explored, and characterized

Describe the types of small bodies in our solar system, their locations, and how they formed

Be able to draw a map of the solar system.

Describe the characteristics of the giant planets, terrestrial planets, and small bodies in the solar system

Explain what influences the temperature of a planet's surface

Explain why there is geological activity on some planets and not on others

Explain how astronomers can tell whether a planetary surface is geologically young or old

Describe different methods for dating planets (Tinder is not an acceptable answer, but perhaps OKCupid?)

Chapter 8--The Earth as a Planet

Describe the components of Earth's interior and explain how scientists determined its structure

Specify the origin, size, and extent of Earth's magnetic field

Explain the difference between weather and climate

Describe the causes and effects of the atmospheric greenhouse effect and global warming

Explain the scarcity of impact craters on Earth compared with other planets and moons

Chapter 9--Cratered Worlds

How big is the Moon, compared to the Earth?

Differentiate between the major surface features of the Moon: crater, maria, highlands, peak, ray

Describe the properties of the lunar soil, also called regolith.

Explain the process of impact crater formation

Discuss the use of crater counts to determine relative ages of lunar landforms

Describe the top three early hypotheses of the formation of the Moon

Summarize the current "giant impact" concept of how the Moon formed

Describe Mercury's basic structure and composition (at least 10 facts)

Summarize our ideas about the origin and evolution of Mercury

Chapter 10--Earthlike Planets: Venus and Mars

Compare the basic physical properties of Earth, Mars, and Venus, including their orbits

Learn 10 facts about Venus

Explain what the study of craters on Venus tells us about the age of its surface

Explain why the surface of Venus is inhospitable to human life

Explain how the greenhouse effect has led to high temperatures on Venus

Learn 10 facts about Mars

Discuss the main missions that have explored Mars

Describe the various features found on the surface of Mars

Compare the volcanoes and canyons on Mars with those of Earth

Describe the general conditions on the surface of Mars

Describe the general composition of the atmosphere on Mars

Explain what we know about the polar ice caps on Mars and how we know it

Describe the evidence for the presence of water in the past history of Mars

Summarize the evidence for and against the possibility of life on Mars

Chapter 11--The Giant Planets

Provide an overview of the composition of the giant planets. Do not say that Uranus and Neptune are made of gas.

Describe the general appearance and rotation of the giant planets

Describe the composition and structure of Jupiter, Saturn, Uranus, and Neptune

Compare and contrast the internal heat sources of the giant planets

Describe the discovery and characteristics of the giant planets' magnetic fields

Characterize the giant planets' wind and weather patterns

Understand the scale and longevity of storms on the giant planets

Chapter 12--Rings, Moons, and Pluto

Name the major moons of each of the jovian planets

Planetary Fact Sheet.pdfPreview the document

Explain what may be responsible for the unusual features on the icy surface of Europa

Describe the major distinguishing characteristic of Io

Explain how tidal forces generate the geological activity we see on Europa and Io

Explain how the thick atmosphere of Titan makes bodies of liquid on its surface possible

Describe what we learned from the landing on Titan with the Huygens probe

Define "planet"

Name new dwarf planets discovered in our solar system

Describe information about Pluto's surface deduced from the New Horizons image

Describe the two theories of planetary ring formation

Explain how the rings of Uranus and Neptune differ in composition and appearance from the rings of Saturn

Describe how ring structure is affected by the presence of moons

Chapter 13--Comets and Asteroids: Debris of the Solar System

Describe the composition and classification of the various types of asteroids

Recognize the threat that near-Earth objects represent for Earth

Discuss possible defensive strategies to protect our planet

Characterize the general physical appearance of comets

Describe the composition of the Oort cloud

Describe trans-Neptunian and Kuiper-belt objects

Explain the proposed fate of comets that enter the inner solar system

Chapter 14--Cosmic Samples and the Origin of the Solar System

Explain the difference between: meteors, meteorites, comets, asteroids

Explain what a meteor is and why it is visible in the night sky

Describe the origins of meteor showers

Explain the origin of meteorites and the difference between a meteor and a meteorite

Summarize the physical changes during the solar nebula stage of solar system formation

Describe the main events of the further evolution of the solar system

Explain the two primary methods for detection of exoplanets

Compare the main characteristics of other planetary systems with the features of the solar system

Describe the geological activity during the evolution of the planets, particularly on the terrestrial planets

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