Earth's Movement (Topic 11, Lesson 1)

Earth's Movement In Space

Objective:

MS-ESS1-1: Develop and use a model of the Earth-sun-moon system to describe the cyclic patterns of lunar phases, eclipses of the sun and moon, and seasons.

​How does Earth's motion affect the amount of daylight

and seasons?

Why do Earth and the moon remain in orbit?

Guiding Questions:

Connections:

Literacy: Cite textual evidence.

Math: Analyze quantative relationships.

An axis is an imaginary line an object turns around. This imaginary line runs directly through the object's center, from the north to the south poles. Although we can't feel the Earth spinning, it makes one complete turn, each day, around its own axis.

​​Axis

​The action of rotating around an axis or center.

Rotation

​

The spinning of the earth is called rotation. It takes the earth abut 24 hours, or one day, to make one complete rotation. At the same time, the earth is moving around the sun. This is called a revolution. It takes a little over 365 days, or one year, for the earth to make one full revolution around the sun.

​​Revolution

ol

An orbit is the path of an object around a particular point in space, for example the path the Moon takes around the Earth.

​​orbit

​A solstice is a moment in the year when the Sun's apparent path is farthest north or south from Earth's Equator. There are two solstices each year—one in December and one in June.

solstice

​An equinox occurs when the position of the Sun is exactly over the Equator. When this happens, the hours of daylight and the hours of darkness are about equal almost everywhere on Earth. Equinoxes take place twice a year.

​​equinox

​An invisible force that pulls objects toward each other. Earth's gravity is what keeps you on the ground and what makes things fall.

Gravity

It states that every celestial body in the universe attracts every other celestial body. This attraction is due to a force (gravity) that depends on the mass of each body and on the distance between the bodies.

​​Law of Universal gradation

Draw

Draw an X on the image to indicate the position of the sun.

Multiple Choice

True or False: Earth's axis passes through the west coast as well as the east coast.

• True

• False

Multiple Choice

Earth as well as the other planets move around what?

• Earth

• Sun

• Moon

• Asteroid

Multiple Choice

A 24 hour cycle is called what?

• revolution

• night

• rotation

• day

Dropdown

Earth rotates from west to ​

Select answer

Multiple Choice

_____is the movement of the one object around another.

• Rotation

• Orbit

• Revolution

• Planet

Draw

Read

Multiple Choice

The ____away a place is from the equator, the more widely its seasonal temperatures vary.

• farther

• closer

• sunlight

• wider

Draw

What is this place called?

Dropdown

Earth revolves around the sun, the ​

Select answer

end of its axis is tilted away from the sun for part of the year and toward the sun for part of the year.

Draw

Read the directions and complete.

Multiple Choice

Why does Earth have seasons?

• Earth has season because it is the thrid plaent from the sun.

• Earth has seasons because it has an equator.

• Earth has season because it is the largest plaent in the solar system.

• Earth has seasons because it is titled on its axis as it revolves around the sun.