Show:
Solar System
Inner Planets
Outer Planets
Other Objects
Historical models
100
What is the definition of the solar system?
The Sun and all the objects that revolve around the Sun as a result of gravity
100
Name the inner planets from the sun outward
What is Mercury, Venus, Earth, and Mars
100
Name the outer planets from the sun outward
What is Jupiter, Saturn, Uranus, Neptune, and Pluto
100
Where most asteroids are found and what's their composition?
The asteroid belt between Mars and Jupiter. Asteroids are made mostly of rock with some ice.
100
Which early astronomer had a geocentric and wheels on wheels model?
Ptolemy
200
The definition of geocentric
What is it means that the earth is placed in the center
200
Venus is known as our sister planet, why?
It is similar in size yet it's atmosphere/temperature make it very different and unlivable.
200
Why the outer planets are called gas giants
They are made up of mainly gases, and they are very large in size
200
Arrange the following from smallest to largest: asteroid, star, meteoroid, planet, dwarf planet
Meteoroid, Asteroid, Dwarf Planet, Planet, and Star
200
Who first used a telescope to look the main moons of Jupiter and the phases of Venus?
Galileo Galilei
300
How Kepler’s version of the heliocentric model different from Copernicus'?
Kepler’s model showed the planets moving in ellipses, and Copernicus’ model showed the planets moving in perfect circles.
300
Why is Mars red?
Mars has large amounts of iron oxide in its soil
300
Why do gas giants have rings and more moons than terrestrial planets?
They have more mass so their gravity is stronger
300
The objects that scientists would use study to learn about the composition of the Oort cloud
A comet would be used because they form out in the Oort cloud.
300
No one believed Aristarchus in his heliocentric model but he did state that smaller objects orbit ________________.
larger objects
400
What causes the comet to have a tail?
A comet has a tail only when its highly elliptical orbit nears the sun because the tail is created out of melting matter.
400
The reason that Venus has such high temperatures
What is its powerful greenhouse effect because of its thick atmosphere of clouds made of carbon dioxide and sulfur dioxide
400
How the Great Red Spot and Great Dark Spot differ.
What is The Great Red Spot is a storm on Jupiter, and the Great Dark Spot represents gaps in the methane clouds on Neptune. Also, the Great Red Spot has always been there, meanwhile the Great Dark Spot disappeared and a new one appeared
400
What is the difference between a meteor, a meteoroid, and a meteorite
Meteors are small pieces of matter burning up in the Earth’s atmosphere. Meteoroids have not entered the Earth’s atmosphere. Meteorites are the meteors that make it to the Earth’s surface.
400
What keeps the moon orbiting around Earth?
The gravitational pull of Earth and the inertial effect of the centripetal force of the moon.
500
How is a solar nebula and planetismal different?
A solar nebula is the beginning of a star and a planetismal is the early formation of planets around a star
500
Why is Mercury covered in craters?
It has no atmosphere and so meteorites hit its surface.
500
What is unique about Uranus?
Uranus tilted completely on its side.
500
The reason that Pluto is no longer a planet
What is In order to be classified as a planet, it has to orbit a star, be big enough so that its own gravity causes it to be shaped as a sphere, be small enough that it isn’t a star itself, and have cleared the area of its orbit of smaller objects. In order to be classified as a dwarf planet, it has to orbit a star, have enough mass to be nearly spherical, not have cleared the area around its orbit of smaller objects, and not be a moon
500
What is Newton's law of universal gravitation? Hint: there are 2 parts
1. The more massive an object the greater its gravity 2. The more distance between objects, the less gravitational pull it has.