Earth's place Flashcards

1
Q

an imaginary line an object turns around.

A

axis

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2
Q

PM- afternoon- after 12 lunch time.
AM- morning time before noon- asleep and when you first get to school.

A

day/night(24 hours

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3
Q

the movement of an object in a circular motion.

A

rotation/rotates

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4
Q

a repeating path that one object in space takes around another.

A

orbit(position)

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5
Q

a dark shape made when an object blocks light. when you stand outside, your body blocks sunlight and that makes a shadow.

A

shadow

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6
Q

a circle of events that repeats in a regular pattern.

A

cycle

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7
Q

perfectly round and symmetrical like a ball.

A

sphere/spherical

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8
Q

the angle of the Earth’s axis. this causes seasons.

A

tilt

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9
Q

evidence, models, relationship, three dimensional, patterns

A

supporting vocabulary

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10
Q

the first phase of the moon. in this phase, the moon is completely dark since we can’t see the side that the sun is shining on.

A

new moon

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11
Q

the second phase of the moon. in this phase, we can see sunlight reflecting off only a

A

crescent moon

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12
Q

What is the third planet from the Sun?

A

Earth

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13
Q

True or False: Earth is the only planet known to support life.

A

True

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14
Q

Fill in the blank: Earth orbits the Sun in an elliptical shape, taking approximately _____ days to complete one orbit.

A

365.25

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15
Q

What is the Earth’s atmosphere primarily composed of?

A

Nitrogen and oxygen

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16
Q

Which layer of the Earth is liquid?

A

Outer core

17
Q

What percentage of Earth’s surface is covered by water?

18
Q

What is the name of the force that keeps Earth in orbit around the Sun?

19
Q

True or False: Earth’s rotation is from east to west.

20
Q

What is the term for Earth’s path around the Sun?

21
Q

Fill in the blank: The tilt of Earth’s axis is approximately _____ degrees.

22
Q

What is the primary reason for the seasons on Earth?

A

The tilt of Earth’s axis

23
Q

What celestial body is Earth’s only natural satellite?

24
Q

What is the average distance from Earth to the Sun?

A

About 93 million miles (150 million kilometers)

25
Which layer of the Earth is solid and includes the crust and upper mantle?
Lithosphere
26
What is the name of the phenomenon that causes day and night?
Earth's rotation
27
True or False: Earth has a perfect circular orbit around the Sun.
False
28
What is the geological term for the movement of tectonic plates?
Plate tectonics
29
Which two planets are often considered Earth's 'sister planets' due to their similar size and composition?
Venus and Mars
30
What is the term for the boundary between the Earth's crust and mantle?
Mohorovičić discontinuity (Moho)
31
Fill in the blank: The Earth's magnetic field is generated by movements in the _____ core.
Outer
32
What is the effect of the Earth's rotation on the movement of air and water?
Coriolis effect
33
What are the two main types of Earth's crust?
Continental crust and oceanic crust
34
True or False: Earth's axis is perpendicular to its orbital plane.
False
35
What is the term used to describe the zone around the Earth where satellites orbit?
Low Earth Orbit (LEO)
36
What is the primary source of energy for Earth's climate system?
The Sun
37
What is the term for the region of space where Earth's gravity is dominant?
Earth's gravitational field
38
Fill in the blank: The Earth's rotation speed at the equator is approximately _____ kilometers per hour.
1670