Tuesday, January 19, 2010

Eighth Grade Week 13

As we continue our look into the Earth's waters we know focus on the largest collection of water: the ocean.

How does the ocean affect us here in Plymouth, WI?
What does teh ocean floor look like? How do we know?
How does water move through the ocean?
What causes currents?

Contracts for this week focus on these questions.

16 comments:

Kristine Maas said...

How do you float easier in salt water than in fresh water?

Lindsey McCabe said...

Why is most of Earth's water salt water?

Anonymous said...

Will El Nino always "come" to Earth or will it ever stop?

Unknown said...

we know that El Nino happens because of weakened trade winds (the book says so) but yet what causes the trade winds to weaken?

Seth said...

The Ocean temeratures can deeply affect the weather. For example...do we see huricanes in the winter? No, because the ocean temperatures aren't warm and there aren't many low temperatures during winter.

John said...

Seth,

Then when do ocean temperatures warm up enough for hurricanes to occur?

Mike,

Good question...try looking beyond the book.

west said...

why are current so important?

P A N I A said...

this might sound dumb but
wat Is, El Nino?
never heard of it.

Jack said...

It says that the El Niño happens every 2-7 years. What makes it the right time to have this El NIño pattern?

Dew Man said...

Why does the Dead Sea have a higher salinity than ocean water? How can you float in the Dead Sea?

ebbottbaby said...

el niño will happen as long as the pacific ocean is wide enough to support it.

Anonymous said...

El Nino usually has a five year cycle.

Thomas Theisen said...

Why is there freshwater in lakes and rivers while there is saltwater in OCEANS.

Anonymous said...

During El Nino, the trade winds weaken.

Dew Man said...

hey mr. hoopman post my questions.

Delfina said...

We're experiencing a mild winter plus one of the worst blizzards we've had because of El Nino which occurs around Christmastime hence the Christ Child label.