# Chapter 7 Lesson 1 Climate

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```					SPI’s: Math: 6.4.7
In this lesson we will
learn some of the
factors that affect
climate.
You will be able to describe two
ways in which bodies of water
can affect climate, using the
words “ land breeze”, “sea
breeze”, and “ocean currents”.
 Climate
 Ocean  current
 El Nino
Science Journals

 Climate:normal pattern of
weather in an area over
many years.
 Ocean current: moving
stream of water created
by winds pushing against
the ocean’s surface.
 ElNino: periodic change in
direction of warm currents in
the Pacific Ocean.
we use fluency and
expression. We also pay
attention to punctuation.
Name Earth’s 3 major
climate zones.
Polar               Tropical
Tropical

Temperate
In temperate zones, when
do the sun’s rays strike
Earth at more direct angles?
 Summer?
 Winter?
Explain
The summer months are
warm in temperate zones.
This means the sun’s rays
must be striking at more
direct angles during the
summer months.
What is the effect of the
sun’s rays striking an area
at angles less than 90
degrees?
Cooler Temperatures!!!
Take a look at the pictures
and captions on P.248.
See if you can find out why
land breezes occur at
night?
At night, land cools down
faster than water. The cool
air over the land moves out
over the water as the warm
air over the sea rises.
Why are some places rainier
than others?

Let’s RTFO
on P. 249.
Describe the difference in
precipitation (rain and
snow) on the leeward side
and windward side of a
mountain.
Windward side = Very wet
Leeward side = Very dry
To describe two ways in which
bodies of water can affect
climate, using the words “ land
breeze”, “sea breeze”, and
“ocean currents”.
Why do more rain and snow
fall at the top of a mountain
than at its base?
The air is cooler at the top of a
mountain. The air needs to be
cool to form clouds that drop
precipitation. (Rain or snow)
So is the air warmer or
cooler at the base of a
mountain?
Warmer!!!
Ocean currents
move water and
energy from place
to place.
How many of you have ever
been to the lake and
noticed the water moving?
That movement is similar to
an ocean current.

“Wind pushing against the
ocean’s surface causes
moving streams of water
called ocean currents.”
currents on P. 250

Is it hot or cold near the
equator?
Hot!!!
Hot!!!
Hot!!!
Name some factors
that affect climate.
 Mountains
 Bodies  of water
 Earth’s overall
shape and tilt
What are ocean
currents, and what
sets them in
motion?
Ocean currents are
moving streams of
water caused by
winds blowing on
the ocean’s surface.
Describe two ways in
which bodies of water can
affect climate. Use these
land breeze, sea breeze,
and ocean currents.
Study the illustration on
PP. 246 and 247.What
kind of climate do you
think Miami, FL has?
Explain.
What factors help to
account for the
differences among
tropical, temperate,
and polar climates?
Next lesson…

TWISTERS!!!

```
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