Star Properties Lesson

Presentation

•

Science

•

8th Grade

•

Hard

Joseph Anderson

FREE Resource

15 Slides • 8 Questions

Properties of Stars

How do we classify them?

Multiple Choice

All stars begin their life in a

Main Sequence

Nebula

Protostar

Black Dwarf

Multiple Choice

Most stars are made of which elements?

Hydrogen only

Hydrogen and Lithium

Hydrogen and Sodium

Hydrogen and Helium

Multiple Choice

Which might change, depending on the DISTANCE to a star?

Absolute Brightness

Apparent Magnitude

Multiple Choice

If a scientist needs to calculate the luminosity of a star, what information would they need?

Distance

Apparent Magnitude

Temperature

Distance and Apparent Magnitude

Poll

Two stars are being compared. Star A has a greater luminosity than Star B. Star A and Star B have the same apparent magnitude. WHICH STAR IS MORE DISTANT?

Star A

Star B

Let's Think...

Stars A & B have the same apparent magnitude in the sky.
Can we assume that they have the same absolute brightness? Why or why not?
What if, star A is 50 LY away & star B is 10 LY away? Which one has the highest luminosity?

H-R Diagram

We classify/organize stars on the Hertzsprung-Russell diagram OR HR Diagram.

Astronomers sort stars by their:

Temperature
Size or Mass

Both temperature and size/mass of a star help us understand the ABSOLUTE BRIGHTNESS or how bright a star actually is.

Multiple Choice

What two quantitative measurements do we use to measure absolute brightness?

Temperature and Color

Color and Mass

Temperature and Mass

Multiple Choice

Which Star is the HOTTEST?

Blue

Red

Orange

Yellow

Multiple Choice

Which Star is the COOLEST?

Blue

Red

Orange

Yellow

Properties of Stars

How do we classify them?

Show answer

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Star Properties Lesson

Properties of Stars

Let's Think...

​H-R Diagram

Properties of Stars

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H-R Diagram