GRADE 9 3RD QUARTER

1. ACTIVITY!
“MOVING STARS“
Grade 9 Science
jhonny Tante.

2. watch a video about the
movement of the stars in the
northern hemisphere and
analyze the movement of the
stars.
INSTRUCTION

3. Astronomy

4. At the end of the 60-minute discussion, the
learners must be able to:
• Describe the apparent motion of the stars at
night;
• Identify the position of the Polaris.
OBJECTIVES

5. As the Earth rotates, your position on Earth changes
relative to the stars. This phenomenon, known as
diurnal motion,
DIURNAL MOTION
E W

6. diurnal motion, makes it appear as though the
constellations move across the sky throughout
the night, just like the Sun 'moves' from East to
West each day.
DIURNAL MOTION
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7. The movement of the stars in the sky is not due
to the stars moving but to the rotational motion
of the Earth. As the Earth rotates with an axis
that is pointed in the direction of the North Star,
stars appear to move from east to west in the
sky.
E W

8. THE VIEW FROM EARTH
E W
6:oo PM
12:0o AM
6:0o AM

9. Polaris, also known as the north star, is
the brighter star in the constellation of
Ursa Minor (little dipper).
THE POLARIS

10. Polaris stands almost motionless in the
sky, and all the stars of the northern sky
appear to rotate around it.