Unit 5 review

Why does Earth experience different seasons?

• The Earth moves closer to the Sun during summer.

• The Earth's axis is tilted as it revolves around the Sun.

• The Sun's temperature changes throughout the year.

• The Moon blocks sunlight during some parts of the year.

What role does Earth’s axial tilt play in the changing seasons?

• It determines the length of a day.

• It causes the Sun’s energy to be distributed unevenly across the Earth.

• It creates variations in the Moon’s phases.

• It prevents the Earth from revolving around the Sun.

During which month does the Northern Hemisphere experience summer, and why?

• December, because the Earth is tilted away from the Sun.

• March, because the Sun’s rays are weakest.

• June, because the Northern Hemisphere is tilted toward the Sun.

• September, because the Earth is closer to the Sun.

What would happen if Earth’s axis were not tilted?

• There would be no change in tides.

• The seasons would not exist.

• The Moon would not orbit the Earth.

• The Earth would revolve more slowly around the Sun.

Which diagram best illustrates Earth’s revolution around the Sun causing seasons?

• A diagram showing Earth at equal distances from the Sun at all times.

• A diagram showing Earth’s axis tilted and revolving around the Sun.

• A diagram showing the Moon revolving around Earth.

• A diagram showing Earth rotating without a tilt.

How does the Sun’s angle in the sky differ between summer and winter?

• The Sun is lower in the sky in summer and higher in the winter.

• The Sun is higher in the sky in summer and lower in the winter.

• The Sun's angle does not change throughout the year.

• The Sun is directly overhead at all times in both seasons.

Why are the days longer in the summer?

• The Earth rotates faster during summer months.

• The Sun is closer to Earth in the summer.

• The tilt of Earth’s axis causes more daylight in summer months.

• The Moon reflects more sunlight during the summer.

What causes ocean tides on Earth?

• The Sun’s heat evaporating ocean water.

• The gravitational pull of the Moon and Sun.

• Earth’s rotation around its axis.

• The position of the Moon during eclipses.

Which of the following describes spring tides?

• Tides with the smallest difference between high and low tide.

• Tides with the greatest difference between high and low tide.

• Tides that occur only during lunar eclipses.

• Tides that happen only in the winter months.

During which Moon phases do spring tides occur?

• First Quarter and Third Quarter.

• Full Moon and New Moon.

• Waxing Crescent and Waning Gibbous.

• Waxing Gibbous and Waning Crescent.