sun - moon- earth- system
when all of the moon's surface that faces Earth is lit up
what is a full moon?
no
are giants hotter than white dwarfs?
they are close to the sun
why do the planets orbit the sun?
time it takes half of parent isotope and make daughter product
what is half life?
they can live for a long time
how long are can they live?
dark - colored, relatively flat regions of the moon
what is maria?
Vega
is Antares or Vega hotter than the sun?
they are meteors
what are shooting stars?
14 used to date bones, wood, and charcoal
what is carbon?
they are scientist who study fossils
what are paleontologists?
the spinning of Earth on its axis
what is a rotation?
Red
what type of star is Betelgeuse?
because they could hit Earth
why do scientists study comets, meteoroids, and asteroids?
they are 3.96 billion years up to 75,000 years
what are the oldest rocks?
they are remained imprints or traces
what are fossils remained?
waning moon phase in which only one - half of the lighted side of the moon can be seen from Earth
what is the third quarter?
yes
they are full of gas and dioxide. Eris and Makemake
what are dwarf planets?
what is the age of rocks?
a thin film of carbon
what is carbon film?
the changing appearances of the moon as seen from Earth
what are moon phases?
The energy comes from the sun
How does the sun provide all the energy for us on Earth?
it was when the astride hit Earth
how was the solar system founded?
bye using properties of the atoms that make up the material
how are they founded?
form when large amounts of plant matter collect
what is coal?