The study of the universe is _______________.

The study of the universe is _______________.

The study of the oceans is ___________________.

The branch of Earth Science that studies the ocean tides and currents is _____________.

_____________ is the branch of Earth Science that studies tornadoes and hurricanes.

The branch of Earth Science that studies stars is ____________.

This branch studies minerals.

A ____________ is a scientific explanation of related topics.

_______________ was an ancient Greek scientist that lived over 2,300 years. He taught about the Earth being the center of the Solar System. He was believed by kings and the Catholic Church.

____________ was an ancient Greek scientist who wrote about the Geocentric model of the Solar System. He lived 2,000 years ago.

___________________ is the belief that ALL objects in the Solar System revolve around the Earth; the Earth is the center of the universe. The Earth does not move.

___________________ is the belief that the Sun is the center of the Solar System, and the Earth is moving around the Sun

___________________ was a Polish astronomer who thought of the heliocentric view of the solar system. He wrote a book and was afraid to publish it until he was dying.

___________________ was an Italian scientist who used a telescope to prove that the heliocentric model was correct. He also gave us the scientific method.

___________________ was an English scientist who defined gravity and explained how it made the heliocentric model work.

___________________ is the force that all objects exert on each other because of their mass. It holds the Solar System together.

___________________ is the theory that states all matter was once together in a very hot, tiny, dense particle. Then about 10 to 15 billion years ago, it was blown apart by an explosion, and the matter rapidly expanded and cooled, and is still expanding.

The ____________ is all of space and all of matter and energy in it.

Stars are found in groups held together by gravity. A huge group of stars is a __________.

A group of galaxies held together by gravity is a __________.

In the _____________ the universe began with the expansion occurring in all areas of the universe. Over time, the expansion slowed and the matter in the universe contracted. Then the process began again, repeating over and over.

The _______________ proposed that the universe always has been the same as it is now. The universe always has existed and always will. A matter in the universe expands outward, new matter is created to keep the overall density the same.

The ____________ is the accepted theory that explains how the universe began as a singularity, (a single clump of everything), it exploded and has been expanding since.

The Big Bang happened ________________. This marked the beginning of the Universe.

The ___________ is a change in frequency and wavelength of a wave. It is caused by the change in distance between the thing creating the wave (causer) and whatever is measuring (observer), seeing or hearing the wave.

________is when light moving away shifts toward a longer wavelength, or towards red light. This is evidence of the Big Bang.

____________ discovered the red shift and supports the Big Bang. He also discovered other galaxies exist.

What is the invisible force that holds the solar and galaxies together?

What is a large group of stars, gas and dust held together by gravity?

What is the Sun together with the group of planets and other celestial bodies that revolve around it that are held by its gravitational attraction?

What is the distance that light travels in one year, about 9.5 trillion kilometers? This is how we measure distances between stars and galaxies.

What galaxy has spiral arms, sort of like a pinwheel? The Milky Way is an example.

What galaxy is shaped like an egg, and is believed to be older than spiral galaxies?

What galaxy do not have a shape? They have an abundance of gas and dust and have old and young stars.

What is galaxy in which the Sun and Earth are located in one of the spiral arm? It is about 100,000 light years wide.

What is a group of galaxies held together by gravity?

Which galaxy has no shape?

Which galaxy is egg shaped?

Which galaxy is pinwheel shaped?

Which galaxy has a lot dust and gas?

Which galaxy has a little dust and gas?

Which galaxy has a some (middle) dust and gas?

Which galaxy has mainly young stars?

Which galaxy has mainly old stars?

Which galaxy has both young and old stars?

How are galaxies categorized?

What is a collection of planets orbiting a star, the sun, and contains 8 planets?

What planet is the smallest planet and has no moons. It's temperature can be extremely hot or cold, and it has no atmosphere to hold in heat? It is a terrestrial (rocky) planet. An inner planet.

What planet has a very high surface temperature because of its thick atmosphere? Earth is its twin, since it is a similar size. A terrestrial (rocky) planet. An inner planet.

What planet is the only planet with liquid water? The only planet that has life that we know of. It is an inner planet/a terrestrial (rocky) planet.

What planet is the last terrestrial planet. It is red-colored due to iron in the soil. It has two moons. It is believed to be able to support life.

What is a belt of asteroids between Mars and Jupiter?

What planet is the first of the gas giants and it has over 60 moons and a giant red spot (storm) and faint rings?

What planet is a gas giant and is known for its rings, and is the second largest planet?

What planet is a gas giant, appears blue-green, is tilted on its side, and has rings? It is very far away from the sun so it has very low temperatures.

What planet is a gas giant that is greenish-blue in color and has faint rings? It is very cold and has high winds.

Which answer option does NOT describe ALL gas giants?

A red shift in the spectrum of the light from an object indicates the object is moving ____ you.

Rotation causes

This object is so dense that nothing, including light, can escape its gravity field.

What contains over 99% of the mass found in the Solar System?

What are the inner planets?

Which is the largest of the inner planets?

Which inner planet is almost the same size as Earth?

Besides Earth, which of the Inner planets has a moon?

Which of the inner planets is the densest?

Which of the inner planets is the hottest?

Which of the inner planets has an atmosphere of poisonous gases and acid rain?

Which of the inner planets has a surface that is the color of oxidized iron?

Which of the inner planets has an orbit of only 88 days?

Which of the inner planets has a year that is longer than an Earth year?

What is the movement of a body in space around another body?

What is the movement of a space object turning on its axis?

What is an imaginary line that runs through the center of a planet of another object?

What is the average distance between the sun and Earth? This distance is about 150,000,000 km.

Mars has two moons; what are their names?

What are small rocky bodies made up of carbon, rocks, and metals that orbit the sun? They can be as large as a dwarf planet.

What are broken smaller asteroids, most being the size of pebbles and dust?

What are meteoroids that are still in space or burning in the atmosphere (shooting stars)?

What are meteoroids that have struck a planet?

What are giant dirty snowballs that orbit the sun and can be miles in diameter? They develop glowing tails as they get close to the Sun.

What are objects that orbit the Sun but are not large enough to classify as planets. Ceres, Pluto, Eris, Haumea and Makemake are examples of some.

Which two planets do not have moons?

What do you call the revolving of one object around another in an oval-shaped path called an ellipse?

What is the force of attraction between two pieces of matter due to mass and distance?

What is the invisible force that holds the solar and galaxies together?

What describes how the moon's appearance changes depending on the positions of the Moon, Earth, and the Sun?

What occurs when the Moon is between Earth and the Sun. During a new moon, the lighted half of the Moon faces the Sun and dark side of the Moon faces Earth?

What occurs when more of the lighted half of the Moon can be seen each night?

What occurs when all of the Moon’s surface that faces Earth reflects light?

What are the Earth’s shadow on the Moon, or the Moon’s shadow on the Earth ? They can take place ONLY when the Sun, the Moon, and Earth are lined up perfectly.

What occurs after the full moon and before the New Moon? This means that you can see less and less of the lighted half of the Moon each night.

What occurs when the Moon moves BETWEEN the Sun and Earth and casts its shadow over part of Earth. It can only happen during a new moon?

What occurs when Earth moves directly between the Sun and the Moon and its shadow falls on the Moon? It only happens during the Full moon phase.

What suggests that the Moon formed billions of years ago when Earth collided with a Mars-sized object?

What do you call it when the surface of the moon reflects the light of the sun?

What takes 27.3 days for the Moon to complete?

What takes 29.5 days fir the Moon to complete its cycle of phases

Identify this moon phase.

Identify this moon phase.

Identify this moon phase.

Identify this moon phases

Identify this moon phase.

Identify this moon phase.

Identify this moon phase.

Identify this moon phase.