MOTIVATION MONDAY In your agenda on today’s date, October 31, write something that motivates you to do your best.

Ocean currents Composition Book Page 33

THE ATMOSPHERE TEST Learning Goal Recognize how convection currents in the atmosphere produce wind Success Criteria Can I explain heat transfers in the atmosphere (convection, conduction, radiation? Can I identify the characteristics of the layers of the atmosphere? Can I describe the density of each layer? (air pressure) Do I know what causes wind and the two types? Can I explain the Coriolis Effect and pressure belts? Can I identify global winds on a map of the world? Can I explain land and sea breezes?

QUIETLY, work on completing this assignment from yesterday

Let’s take a look at “The Atmosphere’s” Most missed test questions J

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Ocean currents Composition Book Page 33

LEARNING GOAL: explain how temperature differences in the ocean account for currents SUCCESS CRITERIA: Can I describe surface currents? Can I name the three factors that affect surface currents?

Think about it… When might there be a time where knowing the pattern of the ocean’s currents be beneficial? Discuss with your group.

OCEAN CURRENTS Movement of ocean water that follows a regular pattern

OCEAN CURRENTS Influenced by: - Weather - Earth’s rotation - Position of the continents

OCEAN CURRENTS TWO TYPES: SURFACE CURRENTS DEEP CURRENTS

SURFACE CURRENTS Horizontal movement of ocean water that is caused by wind and occurs at or near the surface

Continental Deflections SURFACE CURRENTS Caused by 3 factors: Global winds The Coriolis Effect Continental Deflections

Factor #1 - Global Winds Different winds caused currents to flow in different directions. Near the equator – winds blow east to west Neat the poles – winds blow west to east Think of water in a pool or pond when wind blows it? When you blow on hot chocolate and make ripples?

Factor #2 – Coriolis effect Caused by the Earth’s rotation Causing water and wind to move in curved paths rather than straight lines Imagine rolling a ball across a spinning merry-go-round

Factor #2 – Coriolis effect Northern Hemisphere – currents move clockwise Southern Hemisphere – currents move counter clockwise

Factor #3 Continental deflection If the Earth’s surface was all water, the currents could travel more freely and in a more uniformed pattern. The continents DEFLECT the currents.

Think about it... Trade winds are a type of global wind. Trade winds got their name because of their affect on ocean currents. Why do you think they were called trade winds? The Coriolis Effect causes currents to flow differently in the northern and southern hemisphere. How do they move in each? And why? Think of an analogy. Continents deflect currents as _______ deflects ________.

Troublesome Tuesday In your agenda on today’s date, write something that you are having trouble with here at school and might need some extra help with? (nothing is not an answer )

LEARNING GOAL: explain how temperature differences in the ocean account for currents SUCCESS CRITERIA: Can I describe surface currents? Can I name the three factors that affect surface currents? Can I describe deep currents? Can I analyze temperature’s affect on ocean currents? Can I describe density?

DEEP CURRENTS A streamlike movement of ocean water far below the surface

Deep currents Form at parts of the ocean where density increases. Density – amount of matter in a given space Density of ocean water is determined by temperature and salinity (amount of salt) https://www.youtube.com/watch?v=zlkpZZW29b0

Temperature vs. SALINITY VS. Density https://www.youtube.com/watch?v=qeZgJzt3m04 S A L I N T Y D E N S I T Y T E M P.

Name two ways Deep Currents are different than surface currents? On an index card… Name two ways Deep Currents are different than surface currents? Describe the relationship between temperature, salinity, and density. What affect does the Coriolis Effect have on the currents in the hemispheres?

BE READY TO SHARE AND EXPLAIN YOUR ANSWER WHEN CLASS BEGINS. BELLWORK BE READY TO SHARE AND EXPLAIN YOUR ANSWER WHEN CLASS BEGINS.

LEARNING GOAL: explain how temperature differences in the ocean account for currents SUCCESS CRITERIA: Can I describe surface currents? Can I name the three factors that affect surface currents? Can I describe deep currents? Can I analyze temperature’s affect on ocean currents? Can I describe density?

Use a red and blue colored pencil to color the following map CLOCKWISE COUNTER CLOCKWISE

ADD TO YOUR MAP… NORTHERN HEMISPHERE – CLOCKWISE SOUTHERN HEMISPHERE – COUNTER CLOCKWISE CORIOLIS EFFECT!

PICTURES AND QUESTIONS AROUND THE ROOM Deep and surface currents

FREYER model activity

Directions You need three colors: Red (hot), Blue (cold), Third color (salt) The beaker of liquid will represent the ocean. Draw the surface line really close to the top of each beaker. Particles are small, colorable circles. When you draw the particles, think about…DENSITY (amount of particles in a given space) and RISING and SINKING. -Where does warm water rise to? - Where does cold water sink to? - Which temperature is the most dense? - Which temperature is the least dense? 6. When finished, in the small square in the corner of each box, rank the beakers from 1-4. 1 is the least dense, 4 is the most dense.