3rd SWKS Science Earth and Space

Front

What is the difference between rotation and revolution?

Back

Rotation is when an object spins on its axis, like Earth spinning on its axis once every 24 hours. Revolution is when an object orbits around another object, like Earth revolving around the Sun once every 365 days.

Front

What does it mean for an orbit to be nearly circular?

Back

An orbit that is nearly circular means that the path an object takes around another object is close to a circle, rather than being elongated or oval-shaped.

Front

How long does it take for Earth to complete one rotation?

Back

It takes approximately 24 hours for Earth to complete one full rotation.

Front

How long does it take for the moon to complete one revolution around Earth?

Back

It takes approximately 28 days for the moon to complete one full revolution around Earth.

Front

What is the main source of light and heat for Earth?

Back

The Sun is the main source of light and heat for Earth.

Front

What are the three main components of the solar system?

Back

The three main components of the solar system are the Sun, planets, and moons.

Front

What is a model in science?

Back

A model in science is a representation of an object or system that helps to explain how it works or to visualize its structure.

Front

Why is it important to label models in science?

Back

Labeling models helps to clarify what each part represents and makes it easier to understand the relationships between different components.

Front

What is the difference in size between the Sun and Earth?

Back

The Sun is much larger than Earth; it is about 109 times the diameter of Earth.

Front

What is the term for the path that Earth takes around the Sun?

Back

The path that Earth takes around the Sun is called an orbit.