2023 Pre-assessment: Solar System & Sun & Stars

Which elements make up the majority of the sun?

• Oxygen and carbon dioxide

• Oxygen and nitrogen

• Hydrogen and carbon

• Hydrogen and helium

 ________  _________ is the process where hydrogens are combined and give off tremendous quantities of energy.

• Nuclear fission

• Nuclear fusion

• Gravity

• Explosion

 In a star ___ atoms of hydrogen fuse together to make ___ atoms of helium and lots of energy.

• 2, 2

• 3, 1

• 4, 2

• 4, 1

Fusion in the sun can only occur under conditions of extreme _______ and ________.

• Heat and energy

• Energy and light

• Heat and pressure

• Pressure and gravity

The process of how light gets from the sun to Earth is called __________.

• Precipitation

• Granulation

• Photosphere

• Radiation

Identify the layers of the sun from center outward.

• Radiative zone, photosphere, corona, chromosphere, convective zone, core

• Core, photosphere, radiative zone, corona, convective zone, chromosphere

• Core, radiative zone, convective zone, photosphere, chromosphere, corona

• Core, convective zone, radiative zone, corona, chromosphere, photosphere

 How does the energy move outward from the sun’s radiative zone?

• Convection

• Evaporation

• Granulation

• Gravitation

How old is the Solar System?

• 1.5 billion years old

• 4.5 million years old

• 4.5 billion years old

• 100 million years old

How many inches are in 4o feet?

• 480 in

• 4.5 inches

• 40 inches

• 4800 inches

The Sun's energy, in the form of radiation, reaches Earth in the form of

• Electromagnetic waves

• solar flares

• sun spots

• Convection currents