Eighth Grade - A1.3-4: Where Plates Meet.
This week we continue talking about plate tectonics, focusing on the boundaries where different plates meet.
Answer this: What are the different types of boundaries? What happens at each of these boundaries?
Contract 2 to be presented on Friday.
Seventh Grade - C1.3-4: Protista.
This week we examine more complex single-celled organisms.
Answer this: Where can protists be found? How are they more complex than bacteria?
Contract 2 to be presented on Friday.
165 comments:
Why do the plates move?
He thoes a contracts are very good ones.
booyah! What makes the oceanic plates more dense than continental plates?
taylor, it's the convection currents in the mantle
Why is the buttom of the ocean so cold if it is so far down?
how are mountians made
i think the class is really fun but i wish the kids would talk more.
how are volcanos made?why?
Why do hot stops stay in one spot?
umm what does dense mean??? i forgot hahah
What caudes the convection currents?
Would it be possible to go into the mantle useing a deep ocean trench?
how do they know that the core is so hot?
Dense means the amout of mass in a given space.
Why does the earth have tectonic plates?
Why does the earth have tectonic plates?
Why is the inner core solid?
cody, mountains are made when tectonic plates hit each other
why is the mantle so big
wats mass then????
How are deep ocean trenches made
Why does the earth have weather
Preston, the inner core is solid because of pressure
how is earth made
what do u think what will happen with the land in 100,000,000 years? i think that all the land willbe gone because of erosion
I don't Know how to spell erosion.
deep ocean trenches are made by subduction
mass is the space that matter takes up really, krissy
Hey Mr. Hoopman Why is the Mantle hot?Tricky question Eh?
Matt, really tricky. It has to do with pressure and heat.
Why is the San Andreas fault line not divided California yet?
Where does the old oceanic crust go.
Tate, the mantle is thicker because there is less pressure on it then the layers below. The crust is not6 thick because its a solid.
mr.hoopman if the core is so hot and it only has to do with the pressure and heat how can the scientists tell how hot it is?
What happens with old ocean crust?
Taylor, the plates move because they're floating on the astenosphere; a hot layer of magma!
What are the plates underneath yellowstone???
Mountains are made when a continental-continetal collision happens.
Natalie,mass is howmuch space somthing takes up.
wouldn't the old ocean crust fill up the trenches
delany what do you mean by how mountains are made i dont get that!?
That's volume, Randy
Rift valleys are awesome.
~Daniel
why is the in side of the earth so hot
What are the most common boundaries???
Yellostone is like 1-8 of our core it is really cool!!
Steph, it happens when two plates carrying continental crust with the same density crash into each other.
what is your prediction on what the earth will look like in the next 100million years
What happened during the San Franciso Earthquake
Did the earth ever not have plates???
mr hoopman why dont you answer our questions? you only comment on randy jkjk
What do scientists use to record and graph movments of earths tectonic plates
Y is the Earth round???
how do trenches form
vivien the earth always had plates because otherwise the pangaea thing wouldnt be able to happen
Randy, Heat rises.
Steph, because.
Kedie, gravity.
Why in the old days did people think the eath was the center of the univers and that eath was sqaure.
Jack, different.
why are the north and south pole the coldest when heat sinks and cold rises
jacob ocean plates are more dense because they have the wieght of the water on them and the gravity of earth so that would make ocean plates more dense than continental plates
i like the constracts we havedone
why does the inner core get so hot?
the plates move because of the convection cells in the asthenosphere
how are the plates made???
how are mountains made
Why do plates move?
How are volcanoes made?
why do the plates move?
How far do plates move in a year?
What are convection cells?
what are rift valleys
How do we know what is in the middle of the earth...
how do the plate move
mr. hoopman, why is there a trend in earhtquakes. For instance, why does the San Andreas fault line tend to have earthquakes every 150 years?
will we ever collasps in to the center of the earth someday
How can we be sure that all of the layers of the Earth exist?
how do underwater earthquakes happen?
what is a convection current
Why would earthquakes happen more in one spot on a fault like on the San andreas fault earthquakes happen every 20-24 years near the town of Parkfield?
like mike said do people go into trenches
What is the difference of convection currents and convection cells?????????????
hey mitch what is continental-continental collison
Hoopman
Is this the kind of comment you would reject
Cooper,
Yes.
do you think it will ever be possible to reach the center of the Earth?
Plates move at 2-7 centimeters per year, depending on the plate. (very cool)
is magma just melted rock? or is it some other substance???
i dont think so jessica it is to hot near the center of the earth
the earth is way to deep to dig to the center and to hot
the Earths magnetic field is from the Inner Core.
brady, pressure tends to build up in one area more than others, like on the bend near Parkfield.
Protists are fun.
what are some kinds of bacteria
Where can I find a good,bad virius
What is a protist?
what does protist live on or in???????????
What are the biggest type of protist?
why are all bacteria different shapes?
what is encephalitis??
what is a protist???
Are protist like little animals?
what are protist?
is bacteria alive
how often do people get encephalitis...is it rare?
What is a virus?
how small are protist?
hi mr.hoopman why do you think protist are cool?
are bacteria alive
How Large and small can bacteria get to be????
do they have brains?
How large can bacteria get?
is bactirea alive
About how many differents kinds of viruses are there?
what is the werst virus??????????????????????
wat r some kind of viruses
About how many different kinds of bacteria are there?
what is the biggest kind of bacteria
Jessica, no beacuse the futher do u go the hotter it gets so u'd burn up before u got there
do protists eat bacteria?
have u ever got sick from a virus???
do they hav organs
how long do viruses live? do they ever die?
how is a virus formed?
what is the smallests bacteria
Mr.hoopman do u think the world will ever find a way for us to survive and dwell under water
mr hoopman what is ur belief on the world blowing up in 2012
west nile virus
Why nis a viruse called a virus?
Whatis a protist and what does it do?
why do measles cause you to get a red bumpy rash?
bout how many types of bacteria are there in the world?
A protist s anorganism that has only one cell. They can be harmful and helpful
how many kinds of protists are in the world?
what are the main protists
because of gravity
how many proticts are there?
what are small pox
what exactly is tonsillitis is it a virus bacteria or what
shauna tonstillisious or wat ever you said is...a bacteria..well thats wat i think
Ryan i am pretty sure that there are several groups
it is a baterial infection
How fast do virisis kill sells?????
Can virisis get sick???????????????
How do you know whats in the middle of the earth
Jacob maybe in like 1or2 minutes
Virusus can't get sick because there not alive
Jacob viruses kill cells as soon as the virus is done injecting and the new viruses break out or destroy the cell
nate you should reaserch 1 of the groups
michael they dig a hole all the way down and look whats in the middle
How long dose it take fore virisis to infect your body
Technically, Viruses Can Get Sick From Bacteria That Attack It, And It Kills It After.
lithosphere is mooooving
Are there some viruses good for you? or are all bad for you?
How do viruses get inside and attack the human body?
A protist is a single cell organism that can be like a plant(photosynthesis),animal(eats organisms), or decomposer(breaks down dead plants & animals)
A protist is a single celled organism that can be like a plant(photosynthesis), an animal(eats other organisms), or a decomposer(breaks down dead organisms.) They live in places with water.
The "scientists" say that in like 10-100 million years the continents will be conected again due to plate movement but what hapens after that?
compressional waves move back and forth, creating a ripple. they move through solids, liquids, and gases. (also called primary waves)
tate, the mantle is so big because there is a larger quantity of the materials that make up the mantle than the materials that make up any other layer. get it?
Why do we need good bacteria in our body
Good question, Jake. I would ask those scientists if the course plates are on today is the same course they will be on in 100 million years.
alex, I would like to say "beacuse they are good" but I will say it is because we need them to do what they do. Your body is full of microscopic organisms that help you digest, get rid of wastes, etc.
In the ocean don't some waves that crash into each other either die out or grow larger? Then if it works in the ocean when the energy combines is it the same way with p+s earthquake waves or does it not work with land?
Taylor
Plates move because underneath they're convection currents that repeat and move over and over just like water underneath a leaf (example of the water as the magma and a leaf as the plates)
how do most cells survive
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