Ch. 27 The Sun-Earth-Moon System

The farthest point from Earth in the Moon's orbit is called the

The material that falls back to the Moon's surface after an impact blast is

Scientists hypothesize that the Moon's crust is twice as thick

The outer portion of the shadow cast on Earth by the Moon is called the

The fact that Earth observers always see the same side of the Moon is explained by the Moon's

______________ is the state at which the Moon's orbital and rotational periods are equal.

A ___________________ occurs when the Moon passes through Earth's shadow.

This happens when the Sun's light is blocked by the Moon passing between Earth & the Sun.

A ______________ telescope uses mirrors to bring light into focus.

The features on the Moon that formed by objects crashing into its surface are

NASA technologies that have been passed on to commercial industries for common usage are called

The tides on Earth are caused by the gravitational pull of

The light-colored mountainous regions of the Moon are called

A _______________ telescope used lenses to bring light into focus.

What is the closest point to Earth in the Moon's orbit called?

Which sentence explains how the frequency & wavelength of electromagnetic waves are related?

According to the most commonly accepted theory of the Moon's formation, the Moon is made from

The information shown in this graph can be used to make inferences about________.

During an annular eclipse, the Moon

The most commonly accepted theory about the origin of the Moon explains why the

The process of linking separate radio telescopes to act as one is called

_________________ measures distance the between the peaks of waves.

At the time indicated in this diagram, what season is it in the southern hemisphere?

The layers of the Moon, from the surface inward, are the

____________ consists of electric & magnetic disturbances, or waves, that travel through space.

Temperatures on the Moon's surface are

The dark, smooth plains on the Moon are called

The inner portion of the shadow cast on Earth by the Moon is called the

The daily rise & fall of Earth's oceans caused by the gravitational pull of the Moon & Sun are

The hanging-weight system that helps demonstrate the rotation of Earth is called a