Unit 12 Test - Astronomy and Space

Earth moves in a(n) _______ around the sun.

• circle
• ellispe
• figure eight
• square

• holiday
• solstice
• equinox
• eclipse

One _______ is Earth’s yearly orbit around the sun.

• Revolution
• Season
• Rotation
• Cycle

The _______ of Earth’s rotation axis, combined with Earth’s motion around the sun causes seasons to change

• spin
• length
• shape
• tilt

A(n) _______ occurs when Earth’s rotation axis is the most toward or away from the sun.

• Holiday
• solstice
• Equinox
• eclipse

distance among the objects in the solar system

• planet
• dwarf planet
• meteoroid
• astronomical unit

spherical-shaped object that orbits the sun but does not have more mass than objects in nearby orbits

• planet
• dwarf planet
• meteoroid
• astronomical unit

debris left by colliding asteroids or dispersing comets

• planet
• dwarf planet
• meteoroid
• astronomical unit

orbits the sun and has mass much larger than the total mass of all other nearby objects in orbit

• planet
• dwarf planet
• meteoroid
• astronomical unit

made of gas, dust and ice and moves around sun in an ovalshaped orbit

• asteroid
• comet
• geocentric model
• heliocentric model