Formation
Radiation left over from the big bang
Define Subliminate
turning from a solid to a vapor
The flash of light produced when a meteoroid passes through Earth's atmosphere is a (n)
1)meteorite
2) meteor
3) comet
4) asteroid
What is ...
Meteor
When reading a question I should first identify what object?
Focus or Key word (concept or vocab)
Place the 3 types of galaxies in order from youngest to oldest...
irregular, spiral, elliptical
The cloud of gas and dust that shrunk and fused to form solar system
Solar Nebula
The initial explosion that resulted in the formation of the solar system.
Big Bang
A (n)___________ is a loose collection of ice, dust, and small rocky particles that typically has a long narrow ellipse.
A comet
When reading a multiple choice question, at first I should cover the answers, why?
To think of the correct answer, THEN I should see if it matches what is there. Otherwise, I can be more easily persuaded to choose a wrong answer.
The amount of what two things determine the age of a galaxy?
Stars and Dust
Place the events in the right order
1) Planets formed
2) Planetesmals formed
3) Solar Nebula shrunk
4) Nuclear fusion begins in the sun
3) Solar Nebula shrunk
4) Nuclear fusion begins in the sun
2) Planetesmals formed
1) Planets formed
Define System
Must have parts that work together to create a whole. When one part changes, the whole system is affected.
Visible light is a form of
1) electromagnetic radiation
2) cosmic background radiation
3) wavelength
4) spectrum
1) electromagnetic radiation
When really stuck on a question, give at least one good strategy...
*Use the test as a resource to find the answer or gleam information that will help.
*Look for clues in the question itself.
*Find the focus words.
*Move on, don't spend too long on any one question and return to it after you have completed all the other answers.
*Give your best educational guess. NEVER EVER leave it blank.
What galaxy do we live in?
What type of galaxy is it?
Milky Way
Spiral
How long ago do our solar system form
4.6 billion years ago
A model of the solar system in which Earth and the other planets revolve around the sun.
Heliocentric Model
Which hits earth's surface
1) comet
2) meteoroid
3) asteroid
4) meteorite
4) meteorite
In a true and false question, if words like sometimes, most often, typically, or usually appear the answer is probably_______________
True
(words like always, never, definitely are clues that the answer would be false)
Which sentence/s are true about galaxies
1) all galaxies have newly formed stars
2) irregular galaxies have many bright, young stars
3) Spiral galaxies form new stars in the arms of the spiral.
4) Quasars have huge bar-shaped regions of stars that pass through their center.
2) irregular galaxies have many bright, young stars
3) Spiral galaxies form new stars in the arms of the spiral.
65 million years ago, an asteroid collided with earth.
A spherical region of comets that surrounds the solar system.
Oort cloud
On average which is largest?
A comet, meteor, or asteroid
A comet
Which is true:
1) It is always better to study for about 2 hours, before bed, the night before a test.
2) It is usually better to study for short periods (about 15 minutes) over several days before a test.
2) It is usually better to study for short periods (about 15 minutes) over several days before a test.
Name the region that is large enough to contain many galaxies
Hubble Deep Field