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Which statement explains why the Sun appears to be the brightest star?

• A. The Sun is the largest sitar.

• B. The Sun is the closest star to Earth.

• C. The Sun only appears during the day.

• D. The Sun is the smallest star.

Which image correctly places a star to show the location of our solar-system within the Milky Way Galaxy?

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How does gravity affect the motions of Earth and the Moon?

• A. Earth remains in orbit around the Sun because of the Moon's gravity, and the Moon remains in orbit around Earth because of the Sun's gravity.

• B. Earth remains in orbit around the Sun because of Earth's gravity, and the Moon remains in orbit around Earth because of the Sun's gravity.

• C. Earth remains in orbit around the Sun because of the Sun's gravity, and the Moon remains in orbit around Earth because of the Earth's gravity.

• D. Earth remains in orbit around the Sun because of the Sun's gravity, and the moon remains in orbit around Earth because of the Moon's gravity.

How will the Moon appear from Earth when it travels from point 1 to point 2?

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The model shows a city in the Northern Hemisphere marked with a star.

Why will the city experience different seasons as Earth moves around the Sun?

• A. The angle of sunlight shining on the city changes due to the tilt of Earth's axis.

• B. The length of daylight in the city decreases each tine Earth revolves around the Sun,

• C. The tilt of Earth's axis changes each time it rotates.

• D. The amount of sunlight given off by the Sun increases during Earth's orbit.