Space Unit Review

Front

What characteristic do all the planets in our solar system share?

Back

They all orbit the sun, are massive enough that their gravity controls all objects in the area, and are spherical.

Front

What happens to your weight if Earth's mass is cut in half?

Back

Your weight would decrease because gravitational force decreases.

Front

What is a meteorite?

Back

A meteorite is a solid fragment of a meteoroid that survives its passage through the Earth's atmosphere and lands on the Earth's surface.

Front

Why is Earth different from other planets?

Back

Earth is unique because it has liquid water on its surface.

Front

What are the three main characteristics of all planets?

Back

They are spherical, they orbit the sun, and they are massive enough that their gravity controls all objects in the area.

Front

What is a comet?

Back

A comet is a small celestial body made of ice, dust, and rocky material that, when passing close to the sun, heats up and begins to release gases, forming a glowing coma and sometimes a tail.

Front

What is the difference between a meteoroid and a meteorite?

Back

A meteoroid is a small rock or particle from space, while a meteorite is a meteoroid that has entered the Earth's atmosphere and landed on its surface.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, the strength of which depends on their masses and the distance between them.

Front

What is the largest planet in our solar system?

Back

The largest planet in our solar system is Jupiter.

Front

What is the significance of the Earth's atmosphere?

Back

The Earth's atmosphere protects life by blocking harmful solar radiation and helps regulate temperature.