SCIENCE 6 Movement_of_Earth_1317776780.ppt

PPT

1. Movement of Earth
Rotation and Revolution
Prepared by: RAMON B. DINLAYAN, JR

2. 1. The Earth spinning on its
axis.
Rotation
Revolution2. Going around a larger body.
Rotation
Revolution
Revolution
4. Causes the Earth’s seasons. RevolutionRotation
5. Creates a year.
3. 24 hours. Rotation Revolution
RevolutionRotation
6. The moon going around Earth.
RevolutionRotation

3. Identify the motion being shown in each of these
pictures. Each team must write their answers for
each figure in the form of a question.
Earth
Figure #1
Rotation Revolution
Figure #2
Rotation
Revolution
Planet

5. Rotation V/S Revolution
Rotation is the spinning of a moon or planet
on its AXIS
Revolution is planets movement around a
star or moons movement around a planet.

6. Rotation
Viewed from above our solar system, Earth
Rotates once every 23 hours and 56
minutes, from our perspective on Earth it
rotates once every 24 hours,
this is the length of our day.

8. The Earth Continuously
Rotates on its Axis causing
Day and Night.

12. Revolution
Revolution is a planets movement
around a star or a moons
movement around a planet.
The path of that planet or moon is
called an orbit.
All planets in our solar system
have an Elliptical orbit, (more
oval than round)

13. Revolution
Earth’s revolution period is
365.25 days

18. Aphelion and Perihelion
When Earth is closest in orbit
to the Sun is is called
Perihelion.
When Earth is farthest in
orbit from the Sun is is
called Aphelion.

20. The tilt of our Earth
The imaginary
line that runs
through Earth’s
poles is called
its axis.
Earths axis is
tilted 23.5
0

21. What do you observe
about the angle of the tilt?

22. What do you observe
about the angle of the tilt?
T
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a
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23. AXIS
Is an imaginary line which runs through both poles of a planet.
Examples of things that rotate:
tops
Ballerinas
Figure skaters
Cyclones
Tornadoes
A merry-go-round
Earth

25. Earth’s Axis is tilted 23.5 degrees
from vertical
Vertical Axis
Tilted at 23.5 degrees

26. Rotation V/S
Revolution
Rotation is the spinning of a moon or planet on its
AXIS
Revolution is planets movement around a star or
moons movement around a planet.

27. Each 4 years, one day is added to
the month of February to make up
for the 0.25 (1/4) rotation in
each revolution around the sun.
February 29
This is called Leap Year.

29. Seasons
They change due to the tilt of Earth
and Revolution around our Sun.
When either the northern or
southern hemisphere receives more
sunlight, the temperatures
increase, when it receives less
sunlight, the temperatures
decrease.

30. Less sunlight= Winter
More sunlight= Summer

31. Solstices and Equinoxes
Winter Solstice occurs on December 21-22,
we receive the shortest length of sunlight
hours.
Summer Solstice occurs on June 20-
22, we receive the longest length of
sunlight hours.
Equinoxes occur on March 20-21 and on
September 22-23, the equator receives 12
hours of light and 12 hours of darkness.

32. Planets Revolution Around the Sun
Mercury 87.96 Earth days
Venus 224.68 Earth days
Earth 365.26 Earth days
Mars 686.98 Earth days
Jupiter 11.862 Earth years
Saturn 29.456 Earth years
Uranus 84.07 Earth years
Neptune 164.81 Earth years
Period of Revolution

33. Revolution creates seasons.

34. Why does seasons occur?
Seasons occur not
because of the
distance it is from
the sun but due
to the Earth’s tilt
doesn’t change as
it orbits the sun.

35. Hemispheres
The Earth is split
into 4
hemispheres.
Depending on the
hemisphere you
live in depends on
the seasons.
We live in the
Northern and
Eastern
Hemisphere.

37. 1. The Earth spinning on its
axis.
Rotation
Revolution2. Going around a larger body.
Rotation
Revolution
Revolution
4. Causes the Earth’s seasons. RevolutionRotation
5. Creates a year.
3. 24 hours. Rotation Revolution
RevolutionRotation
6. The moon going around Earth.
RevolutionRotation

38. Identify the motion being shown in each of these
pictures. Each team must write their answers for
each figure in the form of a question.
Earth
Figure #1
Rotation Revolution
Figure #2
Rotation
Revolution
Planet

39. Rotation
Spin or Turn on an Axis