Galaxies, stars and the solar system

what element is used in nuclear reactions?

• Hydrogen

• oxygen

• Carbon

• Nitrogen

What is a gas cloud called that will become a star?

• Supernova

• Nebula

• white dwarf

• Red gaint

what is a supernova?

• A type of white dwarf star

• A gas cloud that is the start of a star

• A large explosion when a star is dying

• A red giant star

which of the following is not a stage of the life cycle of a star?

• Formation

• The terrestrial stage

• The stable period

• The Red giant

What stage is our sun in the cycle of a star?

• The Red giant

• The stable period

• The white dwarf

What is the name of our solar system?

• The Aero Bay

• The Milky way

• The Mars Way

• The Spiral Way

What is a Galaxy ?

• Is a collection of millions of stars all held together by gravitational forces

• Is a collection of planets which orbit a Moon

• Is a collection of Solar systems which orbit different stars

How many planets is there in our solar system?

• 7

• 9

• 8

• 6

What is the name of the force that causes the formation of stars?

• Gravity

• Friciton

• Magnetism

Which of the following is not a condition to being a planet?

• The object must orbit a star

• Must be big enough to have its own gravity

• Must have water and oxygen in its atmosphere