HR Diagram and The Sun

Presentation

•

Science

•

8th Grade

•

Medium

•

NGSS

HS-ESS1-3, HS-ESS1-1, MS-ESS1-2

Standards-aligned

Ciara West

Used 79+ times

FREE Resource

5 Slides • 30 Questions

HR Diagram and The Sun

by Miss West

How to read the HR Diagram

Dim Stars

Bright Stars

Cool Stars

Hot Stars

___________________________

___________________

Hot & Bright

Hot & Dim

Cool & Dim

Cool & Bright

Multiple Choice

In the diagram given, what happens as we move to the left?

Stars Get Larger

Stars get Colder

Stars get hotter

Multiple Choice

Which star is the coldest?

Yellow Star

Red Star

Orange Star

Blue Star

Multiple Choice

Blue stars are the _____________.

hottest

coolest

smallest

Multiple Choice

Which star has the lowest temperature?

Multiple Choice

As you move from the bottom to the top of the H R diagram the __________ changes.

Temperature

Luminosity or Brightness

Multiple Choice

Which star is hotter than Deneb

Procyon

Sun

Regel

Banard's Star

Multiple Choice

Which star is brighter than the sun?

Sirius B

Procyon B

Van Maanan's Star

Aldebaran

Multiple Choice

Which star is brighter than Alpha Centauri B, but dimmer than the sun?

Pollux

Spica

Tau Ceti

Mira

Now you need to know the groups

___________________________

___________________

Hot & Bright

Hot & Dim

Cool & Dim

Cool & Bright

Main Sequence Stars:

Average TEMP/BRIGHTNESS

90% of stars here

Our Sun belongs here

White Dwarf Stars:

Small / at the bottom left

Hot and Dim

Giant Stars:

Big and Bright

Cool temp

Supergiant Stars

Biggest and Brightest

Usually cool, always on top

Multiple Choice

Which star is considered a main sequence star?

Vega

Betelgeuse

Pollux

Van Maanan's Star

Multiple Choice

Which star is considered a giant star?

Mira

Zeta Arindani

Barnard's Star

Betelgeuse

Multiple Choice

Which star is considered a supergiant?

Sirius B

Sun

Betelgeuse

Van Maanan's Star

Multiple Choice

Which star is considered a dwarf star?

Altair

Procyon B

Deneb

Sirius

Multiple Choice

Which category is our Sun located in?

White Dwarfs

Supergiants

Main Sequence

Giants

Multiple Choice

The category that contains the most stars is...

Main Sequence

Supergiants

Giants

Multiple Choice

The best description of a super giant star would be -

hot and bright

hot and dim

average brightness and temp

cool and bright

Multiple Choice

What small, hot, faint objects are found at B?

neutron stars

black holes

white dwarfs

brown dwarfs

Multiple Choice

What objects are found at C?

Blue giants

Red giants

White dwarfs

Main sequence stars

Our Sun

Our Sun is...

not the biggest or brightest, it's average

a main sequence star in spectral class G

Located in the outside ARM of the Milky Way

THE CLOSEST STAR TO EARTH!

Multiple Choice

Compared to the rest of the stars, our sun is considered...

Extremely Large and Cold

Small with a medium temperature

Medium size with medium temperature

Multiple Choice

Which category is our Sun located in?

White Dwarfs

Supergiants

Main Sequence

Giants

Multiple Choice

Which spectral class does our star, the sun, belong to?

Multiple Choice

Which one shows the correct location of the Sun in the Milky Way galaxy?

none of the above

Multiple Choice

A student learns that the sun is classified as a medium-size star and that many stars are much bigger and brighter. However, the student observes that other stars look very dim, even through a telescope.

Why do other stars look much dimmer than the sun?

The sun appear yellow, which is more visible than other colors.

The sun is much closer to Earth than other stars are

Other stars are made up of different gases than the sun is.

As light from other stars travels through space, it gets reflected.

Multiple Choice

With the use of the Hubble Telescope, scientists recently discovered a giant runaway star. It is 90 times bigger than the sun and is not very hot and red in color. It is also a very bright star, how come from Earth it does not seem as bright as the sun?

the sun is different color than the runaway star

the sun is older than the runaway star

the sun is closer to earth than the runaway star

the sun is made of different elements than the runaway star

STAAR Question Time!

Multiple Choice

Area M

Area X

Area P

Area Z

Multiple Choice

Barnard's star is less bright than the sun, has a surface temperature below 3,800 K , and is red.

Barnard's star is less bright than the sun, has a surface temperature above 3,800 K and is red.

Barnard's Star is brighter than the sun, has a surface temperature below 5,300 K and is yellow.

Barnard's Star is brighter than the sun, has a surface temperature above 5,300 K, and is yellow.

Multiple Choice

The illustration provided shows four locations in or near the Milky Way Galaxy. Which of the labeled locations shows the approximate position of the Sun?

Multiple Choice

The spectral classes of four stars are shown in comparison with a Hertzsprung-Russell diagram.

Based on the information, which star is most like the sun?

Star 1

Star 2

Star 3

Star 4

Multiple Choice

Why does Earth get more energy from the sun than from all other stars in the universe combined?

The sun is much larger than the other stars.

The sun is much hotter than the other stars.

The sun is much more dense than the other stars.

The sun is much closer than the other stars.

Multiple Choice

What keeps planets in the solar system from moving in straight lines through the galaxy?

Light energy

Gravity

Inertia

Potential energy

Multiple Choice

Based on this diagram, how do the characteristics of Star 1 and Star 2 compare?

Star 1 is cooler and less bright than Star 2.

Star 1 is hotter and brighter than Star 2.

Star 1 is cooler and brighter than Star 2.

Star 1 is hotter and less bright than Star 2.

HR Diagram and The Sun

by Miss West

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