Unit 3 - Science: Observing the Sky

What is the term for an imaginary line that Earth rotates around?

• Orbit

• Axis

• Rotation

• Gravity

What does the term "observe" mean?

• To make a complete spin on an axis

• To push or pull an object

• To use the senses to examine or inspect

• The brightness of a star perceived by an observer on Earth

Which planet is known as the third planet from the Sun and the only planet in the solar system that life exists?

• Mars

• Venus

• Earth

• Jupiter

What is the Sun?

• A natural satellite that orbits a planet

• The southernmost point on Earth

• The center of the solar system that supplies heat and light to Earth

• An imaginary line that Earth rotates around

What is the definition of "moon" according to the study guide?

• A ball of gas in space that produces its own light and heat

• A natural satellite that orbits a planet

• The northernmost point on Earth

• Any of the large celestial bodies that revolve around the Sun in a solar system

What does "distance" refer to?

• The force that causes objects with mass to attract each other

• How far from one point to another

• The path one object takes as it revolves around another object in space

• A push or pull that causes an object to move, stop, or change direction

What is the term for the northernmost point on Earth, as determined by the planet's rotation?

• South Pole

• North Pole

• Axis

• Orbit

What is the definition of "gravity" according to the study guide?

• The brightness of a star perceived by an observer on Earth

• Information that supports an idea

• The force that causes objects with mass to attract each other

• A push or pull that causes an object to move, stop, or change direction

What is a "star" as defined in the study guide?

• A natural satellite that orbits a planet

• The northernmost point on Earth

• A ball of gas in space that produces its own light and heat

• The path one object takes as it revolves around another object in space

What does "force" mean in the context of the study guide?

• Making a complete spin on an axis

• The brightness of a star perceived by an observer on Earth

• A push or pull that causes an object to move, stop, or change direction

• The force that causes objects with mass to attract each other