Mrs. Clark's 6th Grade Science (GSE) Unit 1 Review

Front

What is the period of orbit around the Sun?

Back

The time it takes for a planet to complete one full orbit around the Sun, which determines the length of a year on that planet.

Front

What were the only elements that existed during the earliest stages of the universe?

Back

Helium and hydrogen.

Front

What is the closest celestial body to Earth that can be reached first when traveling into space?

Back

It depends on the trajectory and destination; without specific information, it's not possible to determine.

Front

How has the model of our solar system changed over time?

Back

It has transitioned from an Earth-centered model to a Sun-centered model.

Front

What conclusion can be drawn about the orbital periods of planets in relation to their distance from the Sun?

Back

The orbital periods of the planets increase with increasing distance from the Sun.

Front

What is the definition of a planet's rotation speed?

Back

The speed at which a planet spins on its axis, affecting the length of its day.

Front

What is gravitational pull?

Back

The force exerted by a celestial body that attracts other objects towards its center.

Front

What is the significance of the Sun in our solar system?

Back

The Sun is the central star around which all planets orbit, providing light and heat.

Front

What is the difference between a planet's rotation and revolution?

Back

Rotation is the spinning of a planet on its axis, while revolution is the movement of a planet around the Sun.

Front

What is the definition of a solar system?

Back

A solar system consists of a star and all the celestial bodies that are bound to it by gravity, including planets, moons, asteroids, and comets.