Constellation and Earth's Rotation and Revolution

Earth's Rotation and Revolution

Earth is Always Moving

• Rotates: It Spins on an Axis (an imaginary tilted line that starts at the north pole, goes through Earth's center, ends at the south pole)

• Revolves: It Orbits Around the Sun (takes a circular path around center of the solar system)

Multiple Choice

What is the imaginary line that starts at the north pole, goes through the center of Earth and exits through the south pole?

• axis

• orbit

• rotate

• revolve

Multiple Choice

What is the circular path of Earth around the sun called?

• axis

• orbit

• rotate

• revolve

Earth's Rotation

• Means: spins on an axis

• Takes: 24 hours, 1 day

• Causes: Day and Night

Multiple Choice

Earth's spin on its invisible axis is called its

• rotation

• revolution

Multiple Select

How long does it take for Earth to complete one rotation? Select all that are correct.

• 1 day

• 3 days

• 12 hours

• 24 hours

Multiple Choice

The rotation of Earth on its tilted axis causes

• day and night

• seasons

Day and Night

• As Earth rotates, different parts of it face the sun.

• Side facing sun - Daytime

• Side facing away from sun - Nighttime

Multiple Choice

As Earth spins on its tilted axis, the part of the Earth that faces the sun has

• daytime

• nighttime

Multiple Choice

As Earth spins on its tilted axis, the part that faces away from the sun has

• daytime

• nighttime

Earth's Revolution

• Means: Orbits (circular motion) around an object (sun)

• Takes: 365 1/4 Days, 1 Year

• Causes: Seasons - Winter, Spring, Summer, Fall/Autumn

Multiple Choice

Earth's orbit (circular motion) around an object (the sun) is called its

• rotation

• revolution

Multiple Select

How long does it take for Earth to make one orbit around the sun?

• 1 day

• 365 1/4 days

• 24 hours

• 1 year

Multiple Choice

The revolution of Earth around the sun causes

• day and night

• seasons

Seasons

• Tilted Axis + Orbit Around Sun = Seasons

• Tilt of axis never changes, always points in the same direction

• Areas tilted toward the sun get more sunlight and heat (summer)

• Areas tilted away from the sun get less sunlight and heat (winter)

Multiple Select

What two things contribute to which season happens where?

• tilt of Earth

• orbit of Earth around the Sun

• the speed of Earth's spin

• Earth's magnetic field

Multiple Choice

The part of Earth that is tilted toward the sun will have

• summer

• winter

Multiple Choice

The part of Earth that is tilted away from the sun will have

• summer

• winter