Our Solar System

What ginormous object creates stars?

• Big bang

• Frost line

• Nebula

• Oort cloud

What is a nebula made of?

• light

• gas

• rocks

• gas and dust

What could make a nebula collapse and begin to form stars and planets?

• An exploding star

• Planets colliding

• A passing asteroid

• Nuclear fusion

In our solar system, all major planets lie (roughly) in the same ____ & orbit in the Sun in the same ____.

• plane, direction

• direction, plane

• space, direction

• area, space

Which statement best describes Jovian or gas giant planets?

• few moons; low densities; moderate spin rates

• many moons; thick atmospheres; rapid spin rates

• no moons; thick atmospheres; rapid spin rates

• high densities; many moons; slow spin rates

Which statement best describes the terrestrial planets?

• no or very few moons; solid surfaces; moderate atmospheres

• no moons; non-solid surfaces; hot atmospheres

• many moons; solid surfaces; extreme atmospheres

• they all orbit pretty close in to the Sun

Why do Jovian planets have relatively low densities?

• their spin rates are fast

• they formed relatively close to the Sun & migrated outward

• they formed farther from the Sun & kept lighter elements

• because they have many moons to make up for it

When the Sun became a star, it blew out the lighter elements and gases to form the

• Kuiper Belt.

• outer planets.

• Oort Cloud.

• asteroid belt.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Where are most asteroids found?

• between earth and venus

• between Jupiter and Saturn

• between Saturn and Uranus

• between Mars and Jupiter

Radiometric dating is possible because the rates of decay of radioactive isotopes _____.

• change over time

• change from place to place

• are constant

• vary widely