Name the rocky space objects, much smaller than planets but larger than meteoroids, that revolve around the Sun.

Earth’s water layer:

Earth’s rigid, rocky layer:

Earth’s gas layer:

Earth’s gas layer helps in which of the following ways:

Why do astronomers use light-years to measure distances in space?

Name the spiral galaxy where our solar system is located.

What is a light year?

Identify the type of galaxy shaped like a flattened pinwheel, with curved arms spinning out from a center point.

Name the universal force that attracts, or pulls, all objects that have mass toward one another.

The force of gravity between two objects depends on the ______________ of the objects and the __________________ between them.

A star and the planets, moons, and other objects that revolve around it:

The path that an object takes as it travels around another object:

Which of the following is an example of a natural satellite?

The Sun's atmosphere has three main layers: the corona, the chromosphere, and the ____________________.

The outermost layer of the sun, which can only be seen during a solar eclipse, is the __________.

An area of the Sun where gases rise and fall as energy is transferred by flowing gases.

The middle layer of the Sun's interior where energy is transferred by electromagnetic waves.

The hottest layer of the Sun where nuclear fusion occurs:

A Huge sphere of glowing gases that gives off heat and light:

Earth completes a rotation every _________ .

Which season is taking place in the Southern Hemisphere in Position 3?

Smooth, dark plains on the Moon caused by lava flows:

Which phases are the New & Full Moons?

Which phases are the Quarter Moons?

Which phase is a waxing gibbous?

Which phase is a waning crescent?

What type of tides occur during a New and Full Moon?

What type of tides occur during the First or Last Quarter Moon?

The difference between the ocean level at high tide and low tide is known as

Which type of tide produces the smallest tidal range?

Which type of tide produces the largest tidal range?

This type of eclipse occurs when Earth is in the Moon's shadow.

What type of eclipse is this?

When the Moon moves into Earth's shadow, this causes a...

This image illustrates a __________________

The Instrument that splits a star’s visible light into a band of colors used to determine which elements make up the star.

The regular rise and fall of the ocean's surface: