21. There are two main classes
of planets in the solar system
–
_ _ _ _ _ _ _ (oussega) and
_ _ _ _ _ _ _ _ _ _. (rrestetial)
22. Gaseous planets
- have strong gravity
due to their great mass
- enable to hold gas particles like
hydrogen and helium
- Jupiter, Saturn, Uranus,
and Neptune
23. Terrestial planets
- it is also called as rock planet
- have weaker gravity so they do not
have the ability to hold hydrogen and
helium
-Mercury, Venus, Earth, and Mars
26. Earth
- is the only planet with one
moon
- Jupiter with four moons
- other planets like Mercury and
Venus have no moons at all
- planets with ring are Jupiter,
Saturn, Uranus, and
Neptune
28. Aside from planets there are other
objects that move around the sun.
* They can be seen through a
TELESCOPE, an instrument that
allows a person to see distant
objects. Among these heavenly
objects are ASTEROIDS, which are
rocky objects orbiting the sun. They
have elliptical orbits that enable
them to revolve around the sun.
They can be found between Mars and
Jupiter, in a region called asteroid
belt
29. Meteoroidso pieces of rocks or metal-like objects moving
through the space
o Once they enter the Earth’s atmosphere they
become meteors or shooting stars
o They heat up and appear
to glow brightly when seen
from the ground.
30. Comets Make up the last group of heavenly bodies
They are relatively small, icy bodies that move
around the sun
When they are near the sun, some of the ice on
the comets turn into gases.
The gases and dusts releases from the ice
develop into long , bright tails.
32. Earth
-It is called the living planet
-is the only planet that
supports life
- its temperature and
atmosphere allow water
to exist as solid, liquid,
and gas
- it has enough oxygen and
water for all
33. Sun
Provides the earth
with heat, light
and energy
Gives life to
human
beings,plants, and
animals
36. Study the model / illustration of the solar
system.
a. Observe the sun very early early in the
morning and at noon time . Use dark
glasses.
b. stay under the sun for five
minutes.
c. feel your head and skin.
Try this
37. Try This
What to know:
1. what compose the solar
system?
2. what is the sun?
What to use model of the solar
system smoke glass
38. What did you learn?
1. What is the center of the solar system?
2. What is the first four planets?
3. What are the last five planets?
4. What planet where we live in?
5. What other things are there in the
solar system aside from the planets?
6. How do the members of the solar system move
around the sun?
7. Name the six members of the solar system?
8. Describe the sun.
9. How did your head and skin feel when you were
under the sun?
10. Where did the heat come from?
11. What does the sun give?
40. Generalization
The sun is made up of very
hot gases which give heat
and light.
The sun is the center of the
solar system.
41. Sun
(source of heat and light
Surrounded by
Planets
Terrestial
Mercury
Venus
Earth
Mars
Gaseous
Jupiter
Saturn
Uranus
Neptune
Other celestial
Bodies
Comets
Meteoroids
asteroids
Affects
Earth’s
temperature
Human
activities
Plants
And
animals
42. Valuing
Be thankful for the sun,
moon, stars and other
things that God created a
beautiful universe for us
all.
44. I. Word puzzle. Encircle the members of
the solar system. Write them on the lines
below.
I A B C P O J V L J
M A R S L G M E S U
M E R C U R Y N E P
O A R P T L S U N I
O R C U O V E S Y T
N T O N E P T U N E
D H M E T E O R S R
F R E C U R A N U S
A S T E R O I D S O
45. Name of planets
1. 8.
2. 9.
3. Other members
4. 10.
5. 11.
6. 12.
7. 13.
46. II. Identify the following .Choose your
answer from the list below and write it
on the blank.
____1. the center of the solar system
____2. the family of the sun
____3. the planet where we live in
____4. the path of each member of the solar
system
____5. the planet nearest the sun
____6. the planet farthest from the sun
Earth mercury orbit Mars
Pluto sun solar system
47. III. Put a check (/) before the
statements that tell what is true
about the sun.
__ 1. The sun is a big ball of hot gases.
__ 2. The sun is the nearest star to earth.
__ 3. The sun is smaller than the earth.
__ 4. The sun is hot in the early morning.
__ 5. The sun gives heat, light, and energy.
__ 6. The sun gives life to human beings, planets ,
and animals.
__ 7. The sun is a planet.
__ 8. The sun moves around the earth.
__ 9. The sun is very bright.
__10. The sun sometimes stops shining.