Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Chapter 2 E.S.

Environmental Science

astronomical distances are measured in units light-years
star cluster, a family between a million and a trillion stars galaxy
when planets travel around the sun in elliptical paths orbits
the divisions of the year and are also loosely based on the time it takes the moon to complete its cycle of phases months
the bulging of the ocean high tide
occurs between the two high-tide bulges low tides
when the sun and moon are in line, during the new moon and full moon phases, their gravitational force combine to produce very high tides spring tides
when the sun and moon are at a right angle to the Earth, during first- and third quarter phases, the result is lower than normal tides neap tides
when it takes the Earth 365.25 days to complete one revolution around the sun year
an imaginary line around the earth that divides it into northern and southern halves, called hemispheres equator
the time it takes earth to make one rotation on its axis day
the day where it has the longest period of daylight summer solstice
the shortest period of daylight in the Northern Hemisphere winter solstice
when the sun is directly overhead at the equator spring and autumnal equinox
doesn't need oxygen anarobic
needs oxygen arobic
what are the 3 distinct areas of the Earth? lithosphere, hydrosphere, atmosphere
the solid portion of the earth lithosphere
the water on or surrounding the earth hydrosphere
the sea of gasses the earth has trapped atmosphere
basic building block for all matter atom
what are the levels of matter 1.sub-atomic parts 2.forms an atom 3.element 4.mixtures 5.compounds (simple-inorganic, complex-organic)
what are the levels of living units 1.cell orginellis 2.cells 3.tissue 4.organs 5.organ systems 6.organism-a species 7.populations 8.communities 9.ecosystem 10.biomes 11.biosphere 12.earth 13.solar system 14.galaxy 15.universe
Created by: boydrac13