Transcript Animated Planets PowerPoint Presentation

May 27
Learning Target: understand the similarities of
Mercury and the moon
Vocabulary: 1. rupes 2. regolith 3. bull’s eye
crater
Agenda:
Notes on Mercury and the moon
Projects
Because you asked……..
The next visible comet is Comet Faye. Comet Faye's last
perihelion was on November 15, 2006. It reached an apparent
magnitude of 9.5 during that orbit. The orbital period of Comet
Faye is 7.55 years
Its next perihelion will occur on May 29, 2014. During this next
appearance, its apparent magnitude is expected to be around 12.
The appearance of Comet Faye will come a few short months
after what many expected to be one of the brightest comets in
history, Comet ISON.
.
Because you asked……..
The three main parts of the comet: the nucleus, coma,
and tail. Comets are composed of rock, dust, ice and
frozen gases such as carbon monoxide, carbon dioxide,
methane, and ammonia. Comets contain a variety of
organic compounds, some of these are methanol,
hydrogen cyanide, formaldehyde, ethanol, and ethane.
Complex molecules such as long-chain hydrocarbons
and amino acids may also be in comets.
Because you asked……..
One unusual feature of the planet's surface is the
numerous compression folds, or rupes, that crisscross
the plains. As the planet's interior cooled, it may have
contracted and its surface began to deform, creating
these features. The folds can be seen on top of other
features, such as craters and smoother plains,
indicating that the folds are more recent. Mercury's
surface is flexed by significant tidal bulges raised by
the Sun—the Sun's tides on Mercury are about 17
times stronger than the Moon's on Earth
Watch for a little history this summer
This picture, taken by the European Space
Agency's Rosetta spacecraft this spring shows
the comet 67P/Churyumov-Gerasimenko
emitting a halo of dust and gas as it approaches
the sun. Rosetta will make history later this
year when it orbits and lands on the comet's
surface.
Comets get their coma, when the sun heats
frozen gases erupting from the surface. Dust
particles remain in orbit around the nucleus, and
make it appear much larger.
Rosetta launched in 2004 but has taken a break
the last three years. ESA is activating its
instruments for the final approach to the comet
in August.
1. What is regolith?
2. The moon has large dark flat areas called-------?
3. These are made out of?
4. Which is denser or Mercury or moon?
5. What formed the moon?