Bell Ringer

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Bell Ringer
List the phases of the moon.
• I can describe the different components
of the solar system and how they relate
together.
Flashback
• 1-5 and 1 Bonus:
Review Check
• 1. What is gravity?
• Gravity is the force of attraction
between two objects
• 2. How does your weight on Earth
compare with your weight the moon?
WHY?
• Your weight on Earth is 6 times larger
than on the moon. The moon’s gravity
is 1/6th of Earth’s gravity. Weight is you
mass with the force of gravity.
3. Inertia is
the tendency of an object if in motion
to stay in motion and if at rest to stay
at rest.
• 4. Orbit is…..
– Is the path that one object takes around
another object
• 5. Why can astronauts jump higher on
the moon rather than on Earth?
• The Moon has less mass therefore the
pull of gravity is not as strong.
• 6. What causes the seasons?
• Earth rotates on a tilted axis.
• 7. What causes day and night?
• Earth’s rotation on its axis.
• 8. revolution is …..
• One complete trip around the Sun.
• Earth takes 365 ¼ days to revolve
around the sun.
• 9. rotation is …
• Is one complete spin on its axis.
• It takes Earth 24 hours to make one
complete spin.
• 10. The pull of gravity depends on the
mass of the object and the distance.
• 11. Why do planets stay in orbit?
• The planets are held in orbit around the
Sun by the force of gravity between the
planet and the Sun.
• 12. List the moon phases in order
starting with the new moon.
• New, waxing crescent, first quarter,
waxing gibbous, full, waning gibbous,
last quarter, waning crescent then back
to the new moon.
• 13. What 2 time periods do we mark by
the completion of all of the moon
phases?
• One month and 29.5 days
•
•
•
•
14. Compare Waxing and waning.
Waxing is after the new moon
Waning is before the new moon
The lighted side of the moon is on the
opposite sides.
• Waxing: the lighted side is on the right
• Waning: the lighted side is on the left
• 15. Name two types of eclipse. How are
they different?
• Lunar:
• Solar:
• A solar eclipse happens when the Moon
passes directly between the Sun and
Earth.
• A lunar eclipse happens when the Moon
moves into Earth’s shadow and is no
longer reached by direct sunlight.
• 16. What cause tides?
• The pull of gravity between the Moon and
Earth and between the Sun and Earth
cause a bulge in the surface of Earth. We
do not notice this on the rocky (terrestrial)
part of earth. However, on large bodies of
water it can be seen.
• Tide
• How do we observe objects in space?
• Telescopes,
• 18. Name the planets: inner and outer
• Inner: Earth, Mars, Mercury, Venus
• Outer: Jupiter, Saturn, Uranus and
Neptune
• 19. How are the inner planets different
from the outer planets?
• Inner planets have a solid rock surface.
• The outer planets are gas giants.
• Compare our moon and a satellite
• Our moon is a natural satellite.
• Satellite is an object in space that
circles around another object.
• Natural and artificial
• 21. Compare comets, meteors,
meteorites and asteroids,
• Comets– is a mixture of frozen gases,
ice dust and rock that moves in an
elliptical orbit around the sun.
• Meteors—an object that crosses Earth’s
path and enters Earth’s atmosphere
21 continued
• 21. asteroid—a rock that revolves
around the sun
• Meteorite—a meteor that hits the
ground
• Test on MONDAY

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