s the sun and all of the bodies that orbit the sun.

current model of the solar system.

These models, which used Earth as the center.

an object when viewed from different locations.

is a force of attraction between objects that is due to their masses and the distances between them.

where the object is farthest from the sun.

the object is closest to the sun.

The inward force that causes an object to move in a circular path.

In the illustration at center, we see that if the string breaks, the ball will move off in a straight line.

This cloud, from which the solar system formed.

The protostellar disk had become the protoplanetary disk.

is the process by which two or more low-mass atomic nuclei fuse to form another.

Dark areas that form on the surface of the sun.

is an explosive release of energy that can extend outward as far as the sun’s outer atmosphere.

Huge loops of relatively cool gas that extend outward from the photosphere thousands of kilometers into the outer atmosphere.

are the four small, dense, rocky planets that orbit closest to the sun.

equals the average distance between the sun and Earth, or approximately 150 million km.

have deep, massive gas atmospheres, which are made up mostly of hydrogen and helium.

is a disk of material that circles a planet and consists of orbiting particles.

is a celestial body that orbits the sun and is round because of its own gravity.

is a region of the solar system that begins just beyond the orbit of Neptune and contains small bodies made mostly of ice.

Kuiper Belt Object (KBO)

is any of the minor bodies in the Kuiper Belt outside the orbit of Neptune. Kuiper Belt objects are made of methane ice, ammonia ice, and water ice.

is a small body of ice, rock, and dust that follows a highly elliptical orbit around the sun.

is a spherical region that surrounds the solar system and extends almost halfway to the nearest star.

is a small, irregularly shaped, rocky object that orbits the sun.

A sand grain- to boulder-sized, rocky body that travels through space.

A bright streak of light that results when a meteoroid burns up in Earth’s atmosphere.

is a meteoroid that reaches Earth’s surface without burning up.

Help

Options

focusNode

Didn't know it?
click below

Knew it?
click below

Don't Know

Remaining cards (0)

Know

retry

shuffle

restart

0:00

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Unit 3

Vocabulary

Term	Definition
solar system	s the sun and all of the bodies that orbit the sun.
heliocentric	current model of the solar system.
geocentric	These models, which used Earth as the center.
parallax	an object when viewed from different locations.
gravity	is a force of attraction between objects that is due to their masses and the distances between them.
aphelion	where the object is farthest from the sun.
perihelion	the object is closest to the sun.
centripetal	The inward force that causes an object to move in a circular path.
force	In the illustration at center, we see that if the string breaks, the ball will move off in a straight line.
solar nebula	This cloud, from which the solar system formed.
planetesimals	The protostellar disk had become the protoplanetary disk.
nuclear fusion	is the process by which two or more low-mass atomic nuclei fuse to form another.
sunspots	Dark areas that form on the surface of the sun.
solar flare	is an explosive release of energy that can extend outward as far as the sun’s outer atmosphere.
prominences	Huge loops of relatively cool gas that extend outward from the photosphere thousands of kilometers into the outer atmosphere.
terrestrial planets	are the four small, dense, rocky planets that orbit closest to the sun.
astronomical unit	equals the average distance between the sun and Earth, or approximately 150 million km.
gas giants	have deep, massive gas atmospheres, which are made up mostly of hydrogen and helium.
planetary ring	is a disk of material that circles a planet and consists of orbiting particles.
dwarf planet	is a celestial body that orbits the sun and is round because of its own gravity.
Kuiper Belt	is a region of the solar system that begins just beyond the orbit of Neptune and contains small bodies made mostly of ice.
Kuiper Belt Object (KBO)	is any of the minor bodies in the Kuiper Belt outside the orbit of Neptune. Kuiper Belt objects are made of methane ice, ammonia ice, and water ice.
Comet	is a small body of ice, rock, and dust that follows a highly elliptical orbit around the sun.
Oort cloud	is a spherical region that surrounds the solar system and extends almost halfway to the nearest star.
asteroid	is a small, irregularly shaped, rocky object that orbits the sun.
meteoroid	A sand grain- to boulder-sized, rocky body that travels through space.
meteor	A bright streak of light that results when a meteoroid burns up in Earth’s atmosphere.
meteorite	is a meteoroid that reaches Earth’s surface without burning up.

Created by: user-1935855

Popular Earth Science sets

Mr. Holzshu's review of the layers of the Earth, plates, and boundaries.

Plants

Local and Global Winds

Earth Science Vocabulary

structure of earth

Water Vocab

plate boundaries

"Know" box contains:
Time elapsed:
Retries: