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OBJECTS IN
THE SKY
Amy Howland
EDUC 470
March 2016
THIRD GRADE
SCIENCE CONTENT STANDARDS:
EARTH SCIENCE
4. Objects in the sky move in regular and predictable patterns. As
a basis for understanding this concept:
B. Students know the way in which the Moon’s appearance changes
during the four-week lunar cycle.
D. Students know that Earth is one of several planets that orbit the
Sun and that the Moon orbits Earth.
E. Students know the position of the Sun in the sky changes during
the course of the day and from season to season
THE LUNAR CYCLE
• The moon continually orbits around the earth. This orbit takes
4 weeks to complete.
• Orbit means the curved path of a celestial object or spacecraft
around a star, planet, or moon, especially a periodic elliptical
revolution
• During the 4 weeks, the moon goes through phases- the
sunlight portion that is visible from earth.
THE LUNAR CYCLE
Phase 1- New Moon
– Moon is not visible in the night sky
THE LUNAR CYCLE
Phase 2- Waxing Crescent
– A small part of the moon is beginning to show. A little bit more
of the moon shows for longer each night
THE LUNAR CYCLE
Phase 3- First Quarter
– Half the moon is visible for the first half of the night.
THE LUNAR CYCLE
Phase 4- Waxing Gibbous
– The moon is almost fully visible and stays in the sky for most of
the night
THE LUNAR CYCLE
Phase 5- Full Moon
– We can see the entire surface of the moon during this phase.
The moon stays in the sky all night.
THE LUNAR CYCLE
Phase 6- Waning Gibbous
– The entire moon is almost all visible. Each day that passes, we
see a little LESS of the moon
THE LUNAR CYCLE
Phase 7- Last (or 3rd) Quarter
– We can see ½ of the moons surface
THE LUNAR CYCLE
Phase 8- Waning Crescent
– We can see only a sliver of the moon
THE LUNAR CYCLE
After phase 8, the cycle begins again with a new
moon
PLANETS THAT
ORBIT THE SUN
• There are 9 planets that orbit around the sun
PLANETS THAT
ORBIT THE SUN
• Mercury
– closest to the sun
– Mercury goes around the sun once every 88 earth days
PLANETS THAT
ORBIT THE SUN
• Venus
– 2nd from the sun
– It takes 224.7 Earth
days for Venus to orbit
the sun. It has the
longest rotation period
of any planet in the
Solar System. It
unusually rotates in the
opposite direction to
most other
PLANETS THAT
ORBIT THE SUN
• Earth
– 3rd from the sun
– It takes earth 365
days(1 year) to orbit
around the sun.
– This is the only
known planet to
have life on it.
PLANETS THAT
ORBIT THE SUN
• Earth has one moon that orbits around it.
• Earth’s moon is one of the largest satellites in the
solar system
PLANETS THAT
ORBIT THE SUN
• Mars
– 4th from the sun
– Mars orbits the sun
every 1.88 earth
years (or 686.93
earth days).
PLANETS THAT
ORBIT THE SUN
• Jupiter
– 5th from the sun
– Jupiter orbits around
the Sun once every
11.86 Earth years, or
once every 4,330.6
Earth days.
– Largest planet in the
Solar System
PLANETS THAT
ORBIT THE SUN
• Saturn
– 6th from the sun
– Saturn revolves around the Sun once every 29.4 Earth years, or once
every 10,755.7 Earth days
– Second largest planet
PLANETS THAT
ORBIT THE SUN
• Uranus
– 7th from the sun
– Uranus orbits
around the Sun
once every 84 Earth
years, or once every
30,687 Earth days
– Uranus has 27
moons
PLANETS THAT
ORBIT THE SUN
• Neptune
– 8th from the sun
– Neptune takes
164.79 earth years to
orbit around the Sun
PLANETS THAT
ORBIT THE SUN
• Pluto (dwarf
planet)
– 8th farthest from
the sun
– Pluto takes 248
years to orbit the
Sun
THE SUN IN THE SKY
• The sun always rises in the East and sets in the West
THE SUN IN THE SKY
• The sunrise occurs in the East and as the day progresses,
the sun moves across the sky. By the middle-part of the
day, the sun will reach the highest point in the sky. After
the middle of the day, the sun will begin making its
descent in the West.
THE SUN IN THE SKY
• During the different seasons (winter, spring, summer,
and fall) the sun is in a different position in the sky
THE SUN IN THE SKY
• In the summer, the sun is higher in the sky
• In the winter, the sun is lower in the sky