TEKS 8.8

A large celestial body made of gases that emit light due to nuclear reactions is called -

• a comet.

• a star.

• a galaxy.

• a nebula.

Choose the statement that best describes a characteristic of a nebula.

• A nebula is at the center of the solar system.

• A nebula forms halfway through a star's life cycle.

• A nebula has the coolest temperature of any component in space.

• A nebula is a region of the galaxy where stars are formed.

What color stars are the hottest on the H-R Diagram?

• Blue

• White

• Yellow

• Red

Supergiants are a group of stars that are ...

• low in brightness but high in temperature.

• average in brightness but high in temperature.

• extremely bright and average in temperature.

• average in brightness and average in temperature.

Galaxies are classified by shape. Which of the following are types of galaxies?

• Spiral and elliptical

• Crescent and spiral

• elliptical and crescent

• Lenticular and Spherical

Astronomers make observations in visible light, but also in other parts of the electromagnetic spectrum, such as radio waves and gamma rays. Scientists make observations in different wavelengths because...

• visible light only provides information about the closest objects in our galaxy.

• the information provided by visible light is not a reliable source of data.

• the equipment required for observations in other wavelengths is expensive.

• observations in different wavelengths provide different information about stars.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Which type of stars would belong to spectral class A and have the lowest luminosity?

• White Dwarfs

• Main Sequence stars

• Supergiants

• Giants

Which student described a nebula and a star correctly?

• Student 4

• Student 3

• Student 2

• Student 1

At approximately which position is Earth's solar system located in the Milk Way Galaxy?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-2

After big bang what type of atom to form?

• Hydrogen

• Radioactivity

• Oxygen

• Helium

Tags

NGSS.HS-ESS1-2