Yá’át’ééh! sha'áłchíní

Welcome to science class!

May 4, 2021

August 27, 2020What if…My teacher gets kicked out of Zoom?

Then..1. If you get assigned

as the host end the meeting.

2. Everyone immediately log out of Zoom.

3. Re-enter the class in 5 minutes.

4. If you do not get back into the meeting after continuous tries, class is cancelled.

5. Refer to agenda slides from website.

In case Mrs. Yazzie loses internet connection:● someone becomes

host● host monitors class

until Mrs. Yazzie returns or four minutes have passed

● after 4 minutes host ends class

● everyone tries to re-enter class

● if Mrs. Yazzie doesn’t return after another 4 minutes, class is ended for the day

Sun. Mon. Tues. Wed. Thurs. Fri. Sat.

25 26 27 28Community Forum

5:30PM

29 Last Day of Intervention

30

No School

1

2 3 4 5 Eighth Grade Parent meeting

ZOOM @ 5:30pm

6Last Day of Science Zoom

7

No School

8

9Mother’s

Day

10No Zoom

NWEA- Math

11No Zoom

NWEA-RDG

12No Zoom

NWEA-LANG

13Return school laptops

14

No School

15

16 17 18 19 20

ALL WORK DUE

21

No School

22

23 30

24 31

25 26 27 Last Day of School

8th Grade Promotion

28 29

No School

Announcements● Wednesday, May 5th- 8th Grade

Promotion Mtg. @5:30PM● Friday, May 7th-NO SCHOOL ● Thurs., May 27th- 8th Grade

Promotion● Thurs., May 27th - Last Day of

School

Agenda-Student Check in-Announcements and Calendar-Student Objective & Essential Question- Vocabulary- Slides-Exit Ticket

Student ObjectiveDay 2, Tuesday: I can explain the motion of objects in the solar system.Day 1, Monday: I can describe the relationship of objects in the solar system.

Essential Question:

What makes up the universe, and how does gravity affect the universe?

Big Ideas● The distances between these bodies are huge. ● The solar system consists of the sun and a collection of objects, including planets, their moons, and asteroids that are held in orbit around the sun by its gravitational pull on them ● What natural phenomena do the motions of objects in the solar system produce?

https://www.cnn.com/2021/05/04/culture/star-wars-day-may-4-scn-wellness/index.html

https://www.google.com/search?q=star+wars+day&rlz=1C1GCEU_enUS826US832&oq=star+wars+day&aqs=chrome..69i57j0l8j0i457.15223j0j15&sourceid=chrome&ie=UTF-8

Weekly Vocabulary

black hole object whose gravity is so great that no light can escape

nebula cloud of gas and dust, where stars form

neutron star dense core of neutrons that remains after a supernova

supernova enormous explosion that destroys a star

galaxy huge collection of stars

Big Bang theory states that the universe began from one point billions of years ago and has been expanding ever since

white dwarf hot, dense, slowly cooling sphere of carbondark matter matter that emits no light

https://www.brainpop.com/science/natureoftheuniverse/lifecycleofstars/

3.6 billion Suns can fit into the biggest star in the universe

black hole-object whose gravity is so great that no light can escape

https://www.brainpop.com/science/space/blackholes/

nebula cloud of gas and dust, where stars form

Where are nebulae?

Nebulae exist in the space between the stars—also known as interstellar space. The closest known nebula to Earth is called the Helix Nebula. It is the remnant of a dying star—possibly one like the Sun. It is approximately 700 light-years away from Earth. That means even if you could travel at the speed of light, it would still take you 700 years to get there!

photo: Carina Nebula

photo: Helix Nebula

photo: Eagle Nebula

photo: Bat Nebula

photo: Horsehead Nebula

neutron star dense core of neutrons that remains after a supernova

white dwarf hot, dense, slowly cooling sphere of carbon

1. They can go supernova. Because many stars orbit others in relatively close proximity, a white dwarf in a binary system can begin to cannibalise its partner, pulling material away from

it. The white dwarf continues to gobble up matter from the other star until eventually a critical mass is reached, triggering a chain reaction that results in the white dwarf violently

exploding in a type Ia supernova.

2. Their gravity is 350,000x Earth’s. ‘Degenerate dwarfs’, as they’re otherwise known, no longer generate outward pressure via fusion like main-sequence stars, so their huge mass

causes them to collapse and compact under gravity. The more mass a white dwarf has, the greater the gravity, the more its matter is compressed and, therefore, the smaller the dwarf is.

3. Many will become black dwarfs. A white dwarf is the core of a dead star and these stellar remnants gradually cool until they no longer radiate – in other words, they become more or

less the same temperature as the background of space. At this point, they are considered ‘black dwarfs’. However, no black dwarfs exist yet because this process takes trillions of years,

many times longer than the current age of our universe.

4. A teaspoon of white dwarf matter weighs 5.5 tons. White dwarfs are extremely dense objects. They have a radius that’s typically around 100 times smaller than our Sun, but have

the same mass. As a result, just a single teaspoon of white dwarf matter would weigh as much as an elephant on Earth.

5. The Sun will one day become a white dwarf. The most massive stars will eventually go supernova, but stars will anything from 0.8 to about ten solar masses will ultimately become

white dwarfs. This represents over 97 per cent of the Milky Way – most of the stars you can see in the night sky.

dark matter matter that emits no light

https://www.brainpop.com/science/space/darkmatter/

supernova enormous explosion that destroys a star

galaxy huge collection of stars

https://www.brainpop.com/science/space/galaxies/

Big Bang Theory states that the universe began from one point billions of years ago and has been expanding ever since

https://www.brainpop.com/science/space/bigbang/

https://www.brainpop.com/science/natureoftheuniverse/bigbang/

COOL VIDEOSAttack of the Cosmic Space Junk!

What is a String Theory

Black Holes vs White Hole

Niel DeGrasse Tyson Explains the Tides

BIG NUMBERS

Is NASA a waste of money?

Life Cycle of a Star

Timelapse of the Entire Universe in 10 Mins

AssignmentMini Research

Choose 4 planets and create a padlet for each.Choose 2 other space objects to research.

A