Space Vocabulary

The path one body takes in space as it revolves around another body.

• rotate
• revolve
• orbit
• eclipse

An event that occurs when one object in space passes through the shadow of another object in space.

• galaxy
• refraction
• moon
• eclipse

A star and all the planets and other objects that revolve around it.

• galaxy
• universe
• planet
• solar system

__________________ is the force that keeps us from floating out into space.

• Earth
• The sun
• Magnets
• Gravity

When a planet makes a complete orbit around the sun it is called a _______________.

• day

• revolution

• asteroid

• spin

The earth has a southern and northern _____________.

• Halfsphere
• Semisphere
• Hemisphere
• Half circle

A position in orbit where one hemisphere gets minimum sunlight and one gets maximum sunlight.

• equinox
• night
• solstice
• day

Everything that exists, including such things as stars, planets, dust, gas, and energy.

• galaxy
• universe
• solar system
• moon phase

The reason we have day and night is because ____________.

• It is rising and falling
• The sun revolves around the Earth
• The Earth revolves around the sun
• The Earth makes a rotation on its axis every 24 hours.

What is the Asteroid Belt?

• A region near the Sun where comets originate

• The region between the inner and outer planets where most asteroids orbit the Sun

• A collection of asteroids beyond Neptune

• The rings surrounding Saturn