1. Inside and Out

2.  The solar system
consists of the sun
and eight known
planets and celestial
bodies that orbit the
sun.
 The earth is the 3rd
planet, 93 million
miles from the sun in
the solar system.

3.  Comets are spheres
covered with ice and
dust that leave trails of
vapor as they race
through space.
 Asteroids are large
chunks of rocky
material.
 There is an asteroid
belt between Jupiter
and Mars.

6.  The earth is a series
of shells that surround
one another.
 The center of the
earth consists of the
core, the mantle, and
the crust.
 P. 28 diagram

8.  The core is the center of the earth
and is made up of iron and nickel.
 The mantle surrounds the core and
contains most of the earths mass.
 Magma is molten rock that forms in
the mantle.
 The crust is the thin layer of rock at
the earth’s surface.

9.  The atmosphere
surrounds the earth
and consists a layer of
gases.
 The atmosphere
contains the oxygen
we breathe, protects
the earth from
radiation and space
debris, and regulates
weather and climate.

10.  The lithosphere is
solid rock and
contains the crust and
uppermost mantle.
 The lithosphere forms
the seafloor under the
ocean.
 The continents are
part of the
lithosphere.

12.  The hydrosphere
contains all the water
elements on earth (seas,
oceans, rivers, lakes, and
water in the
atmosphere).
 The atmosphere,
lithosphere, and
hydrosphere form the
biosphere.
 The biosphere is the part
of the earth where plants
and animals live

14.  Developed in 1912 by
Alfred Wegener
 States that earth was
once one big
supercontinent.
 Slowly divided and
drifted apart.
 Pangea – All Earth