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... Solar System attributes • Rocky, small terrestrial planets, Gaseous (hydrogen and helium), giant jovian planets • Planets orbit sun in the same direction • Terrestrial planets orbit closer than jovian planets ...
Material for Exam 4
Material for Exam 4

... the cause of the extinction of the dinosaurs? Do you know how the size of an asteroid is related to how frequently they strike Earth and how much damage they can do? What is the current state of affairs in terms of defense of asteroid impacts? Solar System Formation Do you know the composition of th ...
Celestial Bodies
Celestial Bodies

... Barely visible as they reflect little light ...
14.1 History of the Solar System
14.1 History of the Solar System

... the planets still rotated around earth, but in small circles around a ...
14-1 History of Solar System Study
14-1 History of Solar System Study

... the planets still rotated around earth, but in small circles around a ...
Solar System: Cloze Activity - VCI
Solar System: Cloze Activity - VCI

OUR SOLAR SYSTEM By Nicholas Larnerd
OUR SOLAR SYSTEM By Nicholas Larnerd

... Our solar system has 8 planets and 5 dwarf planets. A solar system is a group of objects in space. ...
planets test
planets test

... 8. All of the _______________ planets have moons except Mercury. 9. The _________________________ consists of the sun, eight planets and their moons, and several kinds of smaller objects. 10. Mars’s atmosphere is mostly _________________________. 11. Jupiter’s Great Red Spot is a(n) ________________ ...
Solar System Presentation
Solar System Presentation

... – is in orbit around the Sun; – has sufficient mass for selfgravity so it assumes a nearly round shape; and – has cleared the neighborhood around its orbit. ...
The Inner Planets Write the letter of each phrase next to
The Inner Planets Write the letter of each phrase next to

... Surface used to have running water. May have formed after a Mars-sized body hit the Earth. Has a very old surface. Has a very young surface. Has “seas” called maria. Its days are longer than its years, if measured in sidereal terms. It is about half the size of Earth. A year on this planet is only 8 ...
The Inner Planets Write the letter of each phrase next to
The Inner Planets Write the letter of each phrase next to

... Surface used to have running water. May have formed after a Mars-sized body hit the Earth. Has a very old surface. Has a very young surface. Has “seas” called maria. Its days are longer than its years, if measured in sidereal terms. It is about half the size of Earth. A year on this planet is only 8 ...
Kuiper Belt
Kuiper Belt

... • Elongated orbits (far beyond Pluto) Space Debris Song – Orbital period of most  hundreds of thousands of years – Some less than 200 years and encounter inner solar system ...
MATCHING
MATCHING

... Study Guide Planet Quiz Name ____________________ ...
Astronomy Review Name: Date: Name the planets in order from the
Astronomy Review Name: Date: Name the planets in order from the

... 34. In terms of stars, explain the meaning of E = mc2. When hydrogen is fused into helium, some of the mass within the atoms is lost. This mass is transformed into huge amounts of energy, which the star emits as light, heat and other radiation. 35. What is meant by axial tilt? The angle at which the ...
Age of the Earth III - PowerPoint Lecture Notes
Age of the Earth III - PowerPoint Lecture Notes

... recycled, and we need to look beyond Earth to find evidence of when the Earth solidified. ...
Chapter 3 Case Studies and Study Guide: The Solar System and the
Chapter 3 Case Studies and Study Guide: The Solar System and the

... planets, asteroids, comets and other celestial bodies. The universe is about 14 billion years old, while Earth is about 4.5 billion years old. A unit used in astronomy to describe distances in the Solar System is the astronomical unit, the equivalent of the mean Sun-Earth distance (1 AU = 1.496 × 10 ...
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... Origin of the Moon: A Disk Instability or a Megaimpact? Peculiar Composition and Unconventional Dynamical Features of the Moon • The fraction of iron in the Moon is 10% • This is lower by a factor of 3 than the iron content of the Earth and Venus, lower by a factor of 2.5 than that of Mars • The lu ...
Integrative Studies 410 Our Place in the Universe
Integrative Studies 410 Our Place in the Universe

... directions of revolution of planets about Sun is the same, and is the same as the direction of the Sun's rotation directions of rotation of planets about their axes is also mostly in the same direction as the Sun's (exceptions: Venus, Uranus, Pluto) most moons revolve around their planets in the sam ...
Jeopardy
Jeopardy

... This is the gas that makes Uranus and Neptune more blue than any of the other Jovian planets. ...
Chapter 7 Solar System study guide
Chapter 7 Solar System study guide

... Sunspots are cooler spots on the sun – they tend to look black. Sunspots come and go in cycles of about 11 years. Solar flares – explosion/ribbon of fire Solar prominences – ribbon of fire/gases – last days or months Fusion of H and He makes energy Sun has the most gravity Lesson two Inner Planets – ...
ES1.Powerpoint.SolarSystem es1.powerpoint.solarsystem
ES1.Powerpoint.SolarSystem es1.powerpoint.solarsystem

... • Covered with clouds • Uranus sits on its side with the north and south poles sticking out the sides. ...
Module 7 Developmental task - Number
Module 7 Developmental task - Number

... The solar system Eight planets rotate the Sun in our solar system – our Earth being the third planet from the Sun. The planets vary in size – the smallest, Mercury, has a radius of only 2 439 km, whereas the largest planet, Jupiter, has a radius more than 70 000 km at its equator. ...
Our Solar System
Our Solar System

... • Small, non-spherical objects that are thought to be debris left over from the formation of the solar system. • Most are in the asteroid belt found between Mars and Jupiter ...
Astronomy Chapters 22-24
Astronomy Chapters 22-24

... • The Giant Impact Hypothesis accounts for origin of Earth’s moon. • The Giant Impact HypothesisWhen solar system was forming, a body the size of Mars struck Earth. Ejected materials entered Earth’s orbit, forming the Moon. ...
Presentation
Presentation

... streams, lakes, and glaciers, as well as that found underground? ...
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Late Heavy Bombardment



The Late Heavy Bombardment (abbreviated LHB and also known as the lunar cataclysm) is a hypothetical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, corresponding to the Neohadean and Eoarchean eras on Earth. During this interval, a disproportionately large number of asteroids apparently collided with the early terrestrial planets in the inner Solar System, including Mercury, Venus, Earth, and Mars. The LHB happened after the Earth and other rocky planets had formed and accreted most of their mass, but still quite early in Earth's history.Evidence for the LHB derives from lunar samples brought back by the Apollo astronauts. Isotopic dating of Moon rocks implies that most impact melts occurred in a rather narrow interval of time. Several hypotheses are now offered to explain the apparent spike in the flux of impactors (i.e. asteroids and comets) in the inner Solar System, but no consensus yet exists. The Nice model is popular among planetary scientists; it postulates that the gas giant planets underwent orbital migration and scattered objects in the asteroid and/or Kuiper belts into eccentric orbits, and thereby into the path of the terrestrial planets. Other researchers argue that the lunar sample data do not require a cataclysmic cratering event near 3.9 Ga, and that the apparent clustering of impact melt ages near this time is an artifact of sampling materials retrieved from a single large impact basin. They also note that the rate of impact cratering could be significantly different between the outer and inner zones of the Solar System.
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