7.4 Meet your Solar System and 7.5 Other Objects in the Solar System

Why was Pluto demoted to dwarf planet?

The gas giants are large clumps of gas, ice, and dust with cold temperatures.

The average distance between the Sun and the Earth.

What is the difference between comets and asteroids? more than one answer is correct

Meteoroids are located....

The planet that "rolls" around the Sun because it is flipped on its side.

The largest planet. It has a "Red" spot.

Why is the Hale-Bopp comet noteworthy?

The "normal" expected direction of planetary motion as seen from the Earth (west to east) -opposite from the Sun.

Which scientist proposed the heliocentric model (the Earth and planets orbit the Sun)?

The only planet that supports life in our solar system.

The "Red" planet, the only other planet that may have supported life.

A VERY small brownish-grey planet with no atmosphere (large differences between day/night temperatures).

Sudbury, Ontario has a large nickel deposit because a _____________ landed on Earth 1.85 billion years ago.

It enters Earth's atmosphere and burns up.

Why is the Swift-Tuttle comet noteworthy?

Can an asteroid have its own moon?

Looking down, the planets revolve in a ______________ motion.

Which scientist determined that planets orbit in ellipses?

_________________ developed the the geocentric model and placed the ________________ at the center of the Universe.

It is much further from the Sun.

Most asteroids are located....

Which scientist is considered the "father of modern astronomy"?

It contains Pluto.

What happens to a comet as it approaches the Sun?

Astronauts use the ________________________ to simulate the environment on Mars.

A meteoroid that enters Earth's atmosphere and reaches the ground.

The comet Shoemaker-Levy collided with which planet?

Shooting Stars are not really stars because they are.....

The motion when Earth catches up with and passes an outer planet. A planet moves from east to west (as seen from Earth)

It comes from the Kuiper belt or the Oort cloud.

The hottest planet.

The terrestrial planets are relatively small and have solid cores and rocky crusts.