What force caused the hydrogen, helium, and lithium formed from the big bang to
collect and form stars, planets, and other objects, as well as to form the different
elements than hydrogen making up these objects?
magnetism
gravity
chemical bonds
inertia
gravity
What process generates the energy that stars emit?
chemical reaction of hydrogen and oxygen to form water vapor- wrong
fission of uranium or other large nuclei to form smaller nuclei
fusion of hydrogen or other small nuclei to form larger nuclei
gravitational acceleration of matter to convert potential energy to kinetic energy-
wrong
fusion of hydrogen or other small nuclei to form larger nuclei
Which of these effects is NOT caused by gravity?
a planet's atmosphere retaining thermal energy
solar systems being held together to form a galaxy
planets orbiting a star
hydrogen gas condensing to form a star
a planet's atmosphere retaining thermal energy
Which of these properties characterize the outer planets compared to the inner
planets?
gaseous and less dense
smaller size
, made of high density material
a shorter year (shorter amount of time to go around the sun)
gaseous and less dense
Which kind of object found in our solar system BEST fits each description?
Description Object
extremely small rocky body usually in the inner solar system
spherical object orbiting a planet
objects from the Kuiper belt or Oort cloud, made of ice and dust
one of the eight large objects orbiting the sun that are large enough to become
spherical from their own gravity, and to have cleared their orbit of other major
objects
asteroid, moon, comets, planet
Which of these is MOST likely to be happening when Earth is closest to the sun
during the year?
Fourth of July fireworks in New York.- wrong
Tree leaves turning autumn brown In Vermont.
A snowy New Year's Eve in Boston.
A spring festival in Washington D.C.
A snowy New Year's Eve in Boston.
When it is winter in New York City, what season is it in New Zealand, which is in
Earth's southern hemisphere?
summer
winter
fall
spring
summer
Drag the label to the correct location to mark each part of Earth's interior.
inner core, outer core, mantle , crust
The hottest part of Earth's interior is its __________.