The Solar System

A natural satellite of a planet.

• Asteroid
• Comet
• Moon
• Meteor

A small object that appears as a streak of light as it enters earth's atmosphere.

• Asteroid
• Comet
• Moon
• Meteor

A student made a model of how the Earth, Moon, and Sun orbit. She used ping-pong balls to represent each one.

She painted each one a different color. Then, she placed the Moon and Earth close together and the Sun much further away.

What is one limitation of the student's model?

• She used the same size balls.

• She made earth orbit the sun.

• She moved the Sun away from the Earth and Moon.

Which of the following is an accurate model of how the Sun, Earth, and Moon move?

• Sun and moon orbit Earth

• Earth and moon orbit Sun

• Earth orbit's the Sun and the moon orbits Earth

• Earth and sun orbit moon

The moon is a natural  ______ of Earth.

• comet
• axis
• satellite
• space probe

Why does Earth have different seasons? 

• because of the distance between Earth and the sun 
• because of the speed of Earth as it rotates on its axis 
• because of the amount of light blocked by the moon on its axis 
• because of the tilt of Earth on its axis as it moves around the sun 

What holds the planets in their orbits around the sun?

• gravity
• speed
• string
• air currents

The __________ has planets, moons, comets, and asteroids.

• solar system

• universe

• galaxy

• Earth

Which of the following is found in our solar system

• black hole

• nebula

• asteroids

• galaxy

The diameter of the Sun is 1,390,000 km. I want to use a tennis ball (6.8 cm in diameter) for a scale model.

How would I calculate my scale factor?

• 6.8 * 1,390,000

• 6.8 / 1,390,000

• 1,390,000 / 6.8