Components of the Universe - 8th Grade

Clusters in the universe are held together by

• gravity

• light

• radiation

• super clusters

In which layer of the sun, does nuclear fusion occur?

• Radiation Zone

• Convective Zone

• Core

• Photosphere

One physical property of a star is apparent magnitude. Which of the following is used in determining the apparent magnitude of a star?

• the constellation the star is in

• the distance the star is from Earth

• the number of times the star rotates

• the number of prominences the star makes

Sarah has to make a science project model that demonstrates the characteristics of stars. Her star classification model should include

• distance, size, and color

• size, distance, and brightness

• color, brightness, and distance

• size, brightness, and temperature

What color are the coolest stars?

• blue

• yellow

• red

• white

The surface temperature of a star is indicated by which characteristic?

• shape

• absolute magnitude

• color

• size

What does the Big Bang Theory explain?

• How time began

• How the universe began

• Both A and B

• None of the above

What is the process of nuclear fusion?

• The process of carrying light.

• The process of two atoms fusing.

• The process of gravity and inertia keeping the universe together.

• The process of fusing two stars

The Big Bang Theory believes that everything in the universe was once concentrated into one point. This point exploded, and ever since the universe has expanded.

• True

• False

Why are stars considered to be the building blocks of the universe?

• Stars are found throughout the galaxy.

• Stars become novas, supernovas, and Black Holes.

• Nuclear fusion within stars creates needed elements for the universe.

• The Sun is a star.