This presentation is based on the curriculum for K12 created by the Department of education. It includes simulation to better understand the concepts presented.

1. When the Sun’s
Rays Strike
PREPARED BY:
MS. KAYE TRANSFIGURACION

2. Describe the Globe
• A spherical
representati
on of the
earth.
• The model is
tilted 23.50
on its axis.

3. OBSERVATION:
http://astro.unl.edu/naap/motion1/ani
mations/seasons_ecliptic.swf

4. OBJECTIVES
At the end of the lesson, the
students should be able to:
a. describe how the tilting of
the earth causes varying
climates in different places;
b. explain how latitude affects
climate; and
c. enumerate the cause/s of
uneven heating of the earth’s
surface.

5. ACTIVITY: SUN’S RAYS
SIMULATION
http://astro.unl.edu/classaction/animations/c
oordsmotion/sunsrays.swf

6. ACTIVITY: SUN’S RAYS
SIMULATION
DATA TABLE:
Direct sun rays
hit at
Countries
with Most
Direct sun
rays
Countries
with
LEAST
Direct sun
rays
1. LATITUDE:___
2. LATITUDE:___
3. LATITUDE:___
4. LATITUDE:___
5. LATITUDE:___

7. POST ACTIVITY
QUESTIONS:
1. Which part of the earth receives
most of the sun’s rays?
2. Why are the coldest places on
earth found near the poles?
3. Why are places with high
temperature found at the equator?
4. What could have been the reason
why different parts of the earth
receive varying amounts of
sunlight?

8. POST ACTIVITY
QUESTIONS AND
ANSWERS

9. Which part of
the earth
receives
most of the
sun’s rays?
The
equator.

10. Why are the
coldest
places on
earth found
near the
poles?
When the area
is farther
from the
equator, the
air
temperature
is lower
resulting in a
cold climate.

11. Why are
places with
high
temperature
found at the
equator?
Due to the
tilting of the
earth’s axis,
places near the
equator receive
more heat
making the air
temperature
higher.

12. What could have
been the
reason why
different
parts of the
earth receive
varying
amounts of
sunlight?
Different places
have received
varying amounts
of sunlight
because the
earth is tilted on
its axis. The
shape of the
earth is also
another factor
to consider.

13. GROUP TASK
One of your friends told you
that the reason why there is
uneven distribution of heat on
the earth’s surface is because
of its distance from the sun.
How will you correct this
misconception? Apply what you
have learned from the lesson
to help your friend understand
why there are places that
receive most/least direct of
sunlight.

14. RUBRICS
Coherence : 4 points
Clarity : 5 points
Creativity : 1 point

15. ASSIGNMENT
Research on human activities
that contribute to climate
change.

16. Reference:
Department of Education. (2014). Grade 9 Learning Module: Science. Retrieved
from: http://www.slideshare.net/r_borres/grade-9-learning-module-
in-science-complete?related=1
Nebraska Astronomy Applet Project. (2009). Seasons and Ecliptic Simulator.
Retrieved
from:http://astro.unl.edu/naap/motion1/animations/seasons_ecli
ptic.swf
Lohmueller, F. (2008). Planets in Orbit. Retrieved from: http://www.f-lohmueller.
de/pov_tut/animate/anim112e.htm
UNL Astronomy. Suns Rays Simulator. Retrieved from:
http://astro.unl.edu/classaction/animations/coordsmotion/sunsr
ays.html
Sources of Pictures:
ARG! Cartoon Animation. (2013). Dancing Question Mark. Retrieved from:
http://toons.artie.com/alphabet/punctuation/arg-qmark-
50.html
Bancarz, S. The Mind Blowing Truth About ‘Global Warming’ That Nobody Talks
About. Retrieved from:
http://www.spiritscienceandmetaphysics.com/wp-content/
uploads/2014/10/global-warming.jpg
Duncan. Heat Transfer - Convection, Conduction, Radiation. Retrieved from:
http://www.proprofs.com/quiz-school/story.php?title=heat-transfer-
convection-conduction-radiation
Journey North. (2014). Why Does the Sun "Rise" and "Set"? Retrieved from:
http://www.learner.org/jnorth/tm/mclass/SunriseSetAns.html
Replogle Globes. (2014). Windsor 12" Blue Ocean 85321 Illuminated. Retrieved
from: http://www.worldofmaps.com/product/WINDSOR.html
Smart College Vist, Inc. (2014). Smart Q & A: Senior Year Honors or AP
Classes? Retrieved from:
http://www.smartcollegevisit.com/2011/05/smart-q-a-senior-year-
honors-or-ap-classes.html
Teachers Pay Teachers. GROUPS Poster Acronym for Groupwork. Retrieved
from: http://www.teacherspayteachers.com/Product/GROUPS-Poster-
Acronym-for-groupwork-749001