7G Science HW#21: Chapter 19.1

The study of the moon, stars, and other objects in space is called _____.

• Astronomy

• Astronomer

• Meteorology

• Meteorologist

An imaginary line that passes through Earth’s center and the North and South poles, about which Earth rotates is called ____.

• Axis

• Rotation

• Revolution

• Orbit

• Latitude

The spinning motion of a planet about its axis is called ____.

• X-axis

• Rotation

• Revolution

• Orbit

• Latitude

The movement of an object around another object is called ____.

• Longtitude

• Rotation

• Revolution

• Orbit

• Latitude

The two days of the year on which neither hemisphere is tilted toward or away from the sun is called _____.

• Solstice

• Equinox

• Vernal equinox

• Autumnal equinox

The day of the year that marks the beginning of spring in the Northern Hemisphere is called _____.

• Solstice

• Equinox

• Vernal equinox

• Autumnal equinox

The day of the year that marks the beginning of fall in the Northern Hemisphere is called _____.

• Solstice

• Equinox

• Vernal equinox

• Autumnal equinox

Because the earth spins on its axis, we experience:

• seasons
• weather
• day and night
• revolution

To complete one year’s time, the Earth makes one complete _____.

• Revolution around the Moon.

• Rotation around the Moon.

• Revolution around the Sun.

• Revolution around Mars.

Which month has a day added because of a leap year?

• February

• January

• March

• April