Life Cycle of a Star part 2

Wednesday

BELL RINGER

Watch the video and answer the questions.

All stars are formed from a cloud of dust and hydrogen gas called?

What do you call the long stable period in which a stars energy

counteracts it's force of gravity?

What does a red giant collapse into after the force of gravity

surpasses the energy of fusion?

What becomes of a Super Red Giant after it collapses?

1

A

Lesson Hook- Think-Pair-Share
2

Think:
Take a moment to observe and reflect on what you see.
1.In your own words, describe what you think happens to a star from its birth to its end. Include at
least three stages you believe are important.

Pair:
Pair up with a partner and share your answers.
Share:
Class discussion

Content Objective

Language Objective

3

8.9A- Describe the life cycle of stars and compare and classify stars using the Hertzsprung-Russell diagram
(HR Diagram)

Students will participate in discussions and group sharing activities using content-based terms and
common abstract vocabulary.
Students will participate in shared writing activities using the English language

I can describe the life

cycle of stars.

3

Lesson
3

Lesson
3

Lesson
3

WITH YOUR GROUP… LET’S TALK!

3A

What is the
similarity

between the life
cycle of a star

and the life cycle

of a human?

The similarities between the

life cycle of stars and

humans is that…

Lesson
3

Lesson
3

Lesson
3

Lesson
3

Multiple Choice

What is the name of the cosmic cloud of dust and gas that is the first stage in the birth of a star?

• Protostar

• Spiral Galaxy

• Quasar

• Stellar Nebula

Multiple Choice

Which stage of life is the sun currently in?

• White Dwarf

• Planetary Nebula

• Main Sequence

• Red Giant

Multiple Choice

What is the final stage of a very high mass star?

• White Dwarf

• Black Hole

• Red Giant

• Neutron Star

Multiple Choice

What is the final stage of a high mass star?

• White Dwarf

• Black Hole

• Red Giant

• Neutron Star

Multiple Choice

What is the final stage of a low mass star?

• White Dwarf

• Black Hole

• Red Giant

• Neutron Star

Multiple Choice

In a high mass star, at the end of the red giant phase, the gravity causes the star to rapidly collapse. This collapse causes a massive explosion called a __________

• White Dwarf

• Planetary Nebula

• Supernova

• Neutron Star

Multiple Choice

Which is one of the heaviest element found in a red giant star?

• Nitrogen (N)

• Iron (Fe)

• Sulfur (S)

• Magnesium (Mg)

Lesson Closure

1. What are the main stages

in the life cycle of a star?

2. Which stage do you find

most interesting, and
why?

5

Open Ended

What are the main stages in the life cycle of a star?

Which stage do you find most interesting, and why?

3B

Vocabulary
3

1.Stellar Nebula

2.Main Sequence

3.Red Giant

4.Planetary Nebula

5.White Dwarf

6.Red Supergiant

7.Supernova

8.Neutron Star

9.Black Hole