Unit 1 Earth Science - Our Place in Space

What are stars primarily made of?

• Oxygen and nitrogen

• Hydrogen and helium

• Carbon and oxygen

• Iron and nickel

What process occurs in the core of a star due to high pressure and temperature?

• Nuclear fission

• Explosion

• Combustion

• Evaporation

What does nuclear fission release in a star?

• Water and air

• Heat and light

• Sound and vibration

• Dust and gas

Can a planet have multiple moons?

• Yes

• No

• Only if it's a gas giant

• Only if it's in the outer solar system

What is the main difference between moons and planets?

• Moons orbit planets, while planets orbit stars

• Moons are larger than planets

• Moons are made of gas

• Moons have atmospheres

Which of the following criteria does NOT need to be met for a body to be classified as a planet?

• It must orbit the sun

• It must be large enough that it's own gravity makes it a spherical shape

• It must be located in the habitable zone of its star

• Must have an orbit free of other debris or small objects

What type of planet is Earth?

• Terrestrial

• Gas giant

• Ice giant

• Dwarf

A moon is a naturally formed satellite that orbits...

• Stars

• Other moons

• Planets

• Galaxies

Which of the following structures are part of the lifecycle of a SMALL star?

• Supernova

• Neutron star

• White dwarf

• Black hole

When a large star contracts and explodes, the explosion is called a...

• supernova

• black hole

• neutron star

• red supergiant