Convection Currents Experiment

We got 2 beakers and had a little Bunson Burners under them. On the one to the right we put blue food coloring it. On the one of the left we put green food coloring in it. We then broke off little pieces of Styrofoam and put them in each beaker. We then watched it and based it off of convection currents.

            My observation is that the left beaker, which was smaller then the right one, had the Styrofoam went to a fixated place and had bubbles go towards them. I think since that beaker was less dense it had it’s own little form of convection currents happen. The one on the right didn’t work because it was denser and stuff.

            We did this to have a explanation on how convection currents work and to have our own little version of it so we can see it first hand. We also did it so we could have fun and learn at the same time. Yeah. Yeeeeeeah.

Convection Currents

Today we did a demonstration about covection currents, using bunsen burners, beakers, styrofoam and food colloring. We used the bunsen burners to heat up the water in the beakers, then we put in the food colloring to help show the movemnet of the bubbles. The styrofoam is an example of the magma that moves during the process of convection currents.

I observed that the styrofoam that was put into the water moved with the currents. They moved around like the rocks would have. I also realized that the currents have to move fast for them to move the rocks around.

We did this observation to help learn about the process of convection currents. Also to learn about how convection currents move the plates.

Convection Currents

Today we did a demonstration with convention currents. We used two different sizes beakers to show convention currents. We used bunson burners to heat the beakers.  After the beakers were heated up we added food coloring to help see the convection currents.

            Then the food color hit the water it spread out in different variations. Some flowed this way and others flowed other ways. The food coloring showed how the convection currents. We also put styrofoam in the beakers to show how the plates move.

            We did this demonstration to make sure we understand what is happening to the convection currents and to show how the convection currents work.

Demonstration Blog By Faith

    Today we had a demonstration. Mr. Morrow had beakers of water on a Bunson plate. We waited till they both were almost boiling and then add food coloring to them and put pieces of styrofoam in. The styrofoam moved like the plates do on the convection curets.
     My observation was that the food coloring was the magma that the styrofoam was the plates. The food coloring moved in circles. The circles represent the matter the is less dense rise to the top and as it cool it becomes denser and then goes back and is heated again and forced to the top.
       We did this demonstration because it gave a a good idea of what convection currents look like. It also helps us understand convection currents better.

convection currents

we put food coloring in bololind water and put stirafome on top of the water

the water and food coloring and water and food coloring swirld around and made the ctirafome moove due to convectin currents and the water wold go back down and heat up agin

Seafloor Spreading

Identify 4 evidences the helped prove the continents where moving and explain each one.

1. they look lilke they fit together 
2.magneti reversals and the riges
3.sea floor spreding
4.the fosals are found where they look like they were conected


Seafloor Spreading-Explain it.

Identify 2 evidences that helped prove the sea floor was growing and explain each one.

1.the magma coming out of the cracks cooling and spreding the land masses . How do you know? 

2.thir is moutans in the botom of the sea becase of the magna cooling. Prove the sea floor is spreading? 

Continental Drift/ sea floor spreading

Identify 4 evidences the helped prove the continents where moving and explain each one.

1. ROCK DISTRIBUTIONS-Explain each one.  

2. MOUNTAIN RANGES
3. FOSSIL DISTRIBUTIONS
4. EVIDENCE OF GLACIATION


Identify 2 evidences that helped prove the sea floor was growing and explain each one.

1. Mountain Ranges. Does this prove the sea floor was spreading? 

2. Fossil Distributions Does this prove the sea floor is spreading? 

Continental Drift/ Seafloor Spreading

Continental Drift is when magma is coming out of the ground under water and the continents are spreading apart and the magma is making new floor.

Evidences of continental drift

1. The continents look like a puzzle- The continents now look like they were all hocked together at one time because the look like they fit together.

2. Fossils- The animals that lived back then could only live in certain climates. For example this one animal could only live in fresh water and it can't swim very far. And this animal has fossils in Africa and in South America. That animal can't swim across the entire ocean and it can't be in salt water.

3. Climate- There are signs that in one time really hot places it was once cold. They figured that the continents have moved and the temperature has changed.

4. Landforms- There're are proof that one time the contents had moutons in some places and also had other landforms in some places and then when the continents move the move to weird places where they don't really belong.

Sea Floor spreading is when in trenches under water erupt with magma and the magma moves the land and it creates more and so it pushes the older mama farther away and make more floor. This happens in the mid- atlantic ridge, it an under water mountain range.

An evidence of this is the magnetic reversal it it when the iron magma hardens in a certain direction. right now ours points north and over time as the magma comes out it makes it around and millions of years from now the magnets could all point south.
What is a second evidence?

Continental Drift/Seafloor Spreading

Continental drift- the Theory that the continents are moving very slowly

Identify 4 evidences the helped prove the continents where moving and explain each one.

1. Identical fossils are found on different continents
2. They all look like they can fit together
3. Tropical remains are found in very cold climates
4.Scratches in the rocks called glacial striations are found in the jungle 


Seafloor Spreading- Magma is pushing up through the sea floor and solidifying making the "Mid-Atlantic Ridge

Identify 2 evidences that helped prove the sea floor was growing and explain each one.

1. The volcanic mountains found at the bottom of the ocean make more land when magma cools- how do you we know this? 

2. The further you get away from the volcanoes the older the rock

Continetial Drift/Seafloor Spreading by Decemberlyn

Continental drift is when all the continents drifted apart. When all the continent were all together it was call Pangaea.

Identify 4 evidences the helped prove the continents where moving and explain each one.

1. Mountain Ranges - The same type of rock forms are found on two different mountain ranges on two different continents.
2. Puzzle - The continents look like puzzle pieces, that they would fit together.
3. Fossils - The same fossils are found in two different continents.
4. Weather - Where its tropical it was cold. Where it was cold it was tropical


Seafloor Spreading is

Identify 2 evidences that helped prove the sea floor was growing and explain each one.

1. Harry Hess proposed that hot, less dense material below Earth’s crust rises toward the surface at the mid-ocean ridges. Then, it flows sideways, carrying the seafloor away from the ridge in both directions. How was this proved? 

2. Iron materials found in the ocean floor at different times in history were pointing in different directions. These are called what? 

Continental Drift/Seafloor Spreading

Continental Drift is the theory that all continents were all connected together at one point of time, but then slowly moved to their current location. There are four facts to prove this.

1. Fossils - The fossil of a mesosaurus is found half on one continent and half on another continent. There is no way he flew across because he was a reptile. He couldn't of swam the way because he could only swim in fresh water, while the ocean is salt water.

2. Striation Marks - Glacial striation marks are found in unlikely climates, which in current days would be impossible for a glacier to be found there. This must mean that the continent must of been in a warmer climate in past time.

3. They Fit Together - They just look like fit together.

4. Mountains - A set of mountains are found in one place, and across the ocean they are mountains that are made of the EXACT same rock of the first set of mountains, which is near impossible.

Seafloor Spreading the the spreading of the Seafloor.

1. When scientists studied patterns in the rocks of the ocean floor, they found more support for sea-floor spreading. You read earlier that Earth behaves like a giant magnet, with a north pole and a south pole. Surprisingly, Earth’s magnetic poles have reversed themselves many times during Earth’s history. The last reversal happened 780,000 years ago. If the magnetic poles suddenly reversed themselves today, you would find that your compass needle points south. Excellent!

2. Samples of the deep ocean floor show that basaltic oceanic crust and overlying sediment become progressively younger as the mid-ocean ridge is approached, and the sediment cover is thinner near the ridge. How did they find this out? 

Picture for sea floor spreading? 

Continental Drift- The theory that state the continents are moving away from each other

1. Glacier marks-Explain

2. Fossils Explain

3. Fits like a puzzle piece

4. Plants Explain




1. Magnetic rocks found in the ground 
2. Magnetic Reversals









Seafloor Spreading- A process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.

1. Magnetic Rocks found in the seafloor

2. Magnetic Reversals.
Besides magnetic reversals how else did they prove the sea floor was spreading? 

Continental Drift and Seafloor Spreading

Continental Drift –

Continental Drift is the theory, made by Alfred Wegener, which all the continents were once together to form Pangaea. Pangaea is the super continent that was the combination of all today’s continents. There are three evidences of the Continental Drift.

One evidence is the fossils. Meosauars was a fresh water and land dinosaur that couldn’t live in salt-water let alone swim all over the ocean. The fossils of Meosauars have been found in South America and Africa. How, you may ask. South America and Africa were once together which made it easy for Meosauars to just walk over the land.

Another evidence is the rocks. The mountains in the United States and Europe are in a perfect line. The mountains are also the same age and kind of rock. How? They were once together and formed one mountain range. After the Continents Drifted apart the mountains were pulled apart.

The third evidence is weather. Coal is made up of dead plants that have been pushed under Earth’s weight. We have found coal in places like Antarctica. This tells us the Antarctica was once in a different location. A warmer location, which had lots of plant life.

The last evidence is the shapes of today’s continents. South America and Africa look like they could have once were together. Which by looking at fossils they once were.

Seafloor Spreading –

            Seafloor Spreading is when the seafloor spreads or the seafloor “grows”. Magma from under the earths crust flows up through the seafloor. The new seafloor pushes the old seafloor away. Creating a new seafloor and pushing the old one farer away.

            The first evidence is earth’s magnetic field. Over the years of seafloor spreading the magnetic field has changed over and over again. The seafloor’s minerals tell where the magnetic field pointed. It once was south then north then south again and back to north.

            The second evidence is age of the seafloor. The farther way the seafloor is from the magma the older the seafloor is. The closer the seafloor is the younger the rock is. Great Responses Thank You!

Continental Drift/ Seafloor Spreading

Continental Drift

Continental Drift is the theory that the continents were all connected at on time and have slowly moved to their current location. Scientist know this happened because of four reasons.

1. The continents look like they fit- Pangea is the theory that all of the continents were once connected. When they drifted apart the shapes of the continents looked like they still fit together. This tells scientists that continental drift could have taken place.

2. Fossils- When exploring the theory of continental drift, scientists found the same fossils on two different continents. This was strange because they fossils they found were from an animal that couldn't swim to get to a different continent. This means that continental drift must have happened.

3. Climate- There are signs of tropical plant life on Antarctica and signs of ice burgs in the tropics. You may ask how this is possible. Its because of continental drift. Antarctica was once in a warm area and hot continents were once in a cold area.

4. Landforms- There are also signs of different landforms that were once on one continent that "match up" with other landforms on different continents. The matching landforms can only be explained by continental drift.

Seafloor Spreading

Seafloor spreading is basically the spreading of the seafloor caused by a series of events. First magma from under the ocean comes up to the seafloor. When it touches the water the magma hardens and expands the seafloor. This new land is made at the mid-ocean ridges (a big underwater mountain range) and scientists can date the new land that is made.

An evidence of seafloor spreading is magnetic reversal. The new land is formed and it has a different magnetic field, which proves that seafloor spreading is taking place.

Here is a quick, interesting video on seafloor spreading.
https://www.youtube.com/watch?v=BCzCmldiaWQ

Great Job! Thank You! 

Continental Drift and Seafloor Spreading

Continental Drift-the gradual movement of the continents across the earth's surface through geological time.

1. Fossils-fossils of a dinosaur were found on different continents separated by oceans which supports the idea of continental drift
2. Puzzle Pieces-the continents look like they should fit together supporting the idea of continental drift
3. Mountain Ranges-mountain ranges found in Europe have the same composistion and the same rocks in them supporting the idea of continental drift
4. Coal and Glacier Evidence-coal which requires tropical plants were found in cold desolate places
Glaciers which require a cold environment were found in South America from glacier striations

Seafloor Spreading-the formation of new areas of oceanic crust, which occurs through the upwelling of magma at midocean ridges and its subsequent outward movement on either side.

1.The Magnetic Reversals-when the magnetic reversals took place the ocean floor composistion of iron pointed to the direction of the magnetic pole. In the ocean there are many different times where the ocean floor is pointing different directions.
2. The Age of Ocean Floor-the closer the floor is to the midocean ridge the younger it is. So the farther away the ocean floor the older. These to facts help prove seafloor spreading. No Pictures? Great Answers. Great Effort! 

Continental Drift/Seafloor Spreading by whitney

Continental Drift-Is when the continents drift apart.
4 evidences the helped prove the continents where moving.

1. Fossils: Fossils are found on two or more different continents and they can't swim the ocean
2. Mountain Range: The same type of rock from two different mountain ranges on two different continents
3. Puzzle: The continents look like they could fit together.    
4. Weather: Were its tropical it was cold. Were its cold it was tropical.

Seafloor Spreading-Is when the magma comes out of the volcano at the bottom of the ocean and it  makes more seafloor.2 evidences that helped prove the sea floor was growing.1. Hess proposed that hot, less dense material below Earth’s crust rises toward the surface at the mid-ocean ridges. Then, it flows sideways, carrying the seafloor away from the ridge in both directions.2. Iron materials found in the ocean floor at different times in history were pointing in different directions.

One clue is magnetic reversals Yes. 
What is the other clue? 

Continental Drift / Seafloor spreading Faith

       Continental Drift is the idea that the continents were all once connected; also known as Pangaea, and then moved apart. A meteorologist named Alfred Wegner became obsessed with the fact that it looked like all the continents combined. He came up with four evidences that helped prove that the continents were once connected.

The first evidence was that South America and Africa really looked like they were once connected. He wasn’t the first person to notice this but he was the one who put more research into it.

The next evidence took more research to find. He found that fossils of Mesosaurus were found in South America and in Africa. Mesosaurus was a fresh water dinosaur that would not to be able survived the trip from Africa to South America.

The third evidence is the fossil fuels found in Antarctica. The have found coal in Antarctica and coal is made from compacted plants and if there were plants there then at one time it was somewhere else on the Earth.

The fourth and final evidence is the rock structures in North America and Europe. The types of mountains are about the same age and also the same type of rock.

Now Seafloor Spreading is our other main topic. Seafloor Spreading is when magma comes out of the ridges in the ocean floor and makes more ocean floor. However the earth is not getting bigger because there are spots in the ocean where earth is going underneath another.

The first evidence of seafloor spreading is ageing. Ageing is when they brought up different rocks of the mid Atlantic ridge and aged them. They soon discovered that the farther away from ridge the older the rocks are. Which means that magma comes up and cools then forms rock and pushes the older rock farther away.

The last evidence is magnetic particles. Magnetic particles are found in the rock in the mid Atlantic ridges and they then point to the magnetic field. However they did find really old rocks that pointed to the south that show that the magnetic field had reversed.  Very good! 

Continental drift/ Seafloor spreading

Continental drift is a term, no longer used by geologists, that refers to the fact that continents are stationary, but move across the Earth's surface. Continental drift is one feature of the modern theory of plate tectonics. There are clues of the continental drift. Puzzle like fit means that the continents fit together. Climate clues like glacier scares and deposits. Rock clues like similar ages and types of rocks on different continents. Fossil clues which is same plant and animal fossils found on different continents. Very Good

Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. Seafloor spreading helps explain continental drift in the theory of plate tectonics. 

What are the 2 proofs that seafloor spreading is occuring?
1. 

2. 

Continental drift/ seafloor spreading- Olivia

Continental drift is when the continents move apart from each other. Rock, glacier, coal, and fossil clues are all evidence that continental drifting has occurred. Rock clues show evidence that different mountain ranges of different continents have that same kind of rock. When glaciers move across rocks it leaves a mark on the rock in tropical areas rocks have these marks and are evidence. In cold places like Antarctica have coal, coal is made when plants die, this shows that they used to be tropical places but because of continental drift they have moved to colder areas.

 Fossil clue

Seafloor spreading occurs when a volcano erupts and create  a mountain on the ocean floor. When molten lava goes to the surface of the ocean floor it soon cools. After as more lava erupts the earlier cooled lava spreads farther out.

2 Proofs of sea floor spreading? 

Seafloor spreading and continental drifting by Tyler

                           Continental drifting

- the movement of the Earth's continents relative to each other

1. the continents slowly move away from each other 

2. you can find fossils in places like Africa that are the same as the fossils in the U.S.

3. you can find the same species of birds or other animals in places like Australia as you can Africa

4. same mountains in the U.S. as in other continents

Seafloor Spreading

when the sea floors get bigger/ expand 

1. under water ridges---What evidence is save in the the ridges that is proof of sea floors spreading

2.  as you go farther out in the ocean the land is older than it is when you are closer to the land.

ContinetalDrift/SeafloorSpreading

Continental Drift: Explain it? What is it?

1. Fossils- Some fossils that are found in South America are found in Africa.

2. Rocks- There are the same types of rocks found all over the world

3. Glaciers- Glaciers make scratches on rocks and these scratches are found in Africa and Africa is a warm savanna continent

4. Plants- There are some types of plants that are found in the same continents

Seafloor Spreading: Explain it? What is it? 

1. Mid-Ocean Ridges- The farther you get from the mid ocean ridges the older the rock gets.

2. Changes in polarity- Earths magnetic field showed reversals in the polarity

Continental Drifting/Seafloor Spreading

Identify 4 evidences the helped prove the continents where moving and explain each one.

What is continental drift?
1. Continents Fit Together: Wegener realized that the continents looked like they fit together like  puzzle pieces.
2. Glaciers: Evidence that there were glaciers moving over the tropical rain forests and there were tropical rain forests in the colder climates today.
3. Climate: Wegener found evidence that the Pangea was not all covered in ice.
4. Mountains: They found the same kind of mountains/rocks in two different areas of the world, which would be unusual unless at one time they were connected.


Seafloor Spreading-Explain it.

Identify 2 evidences that helped prove the sea floor was growing and explain each one.

1. Age: When new crust is formed the age of the crust around it is older.
2. Magnetic Reversal: The poles change direction when seafloor spreading takes places which happens to be magnetic reversal.

continental drift/seafloor spreading

continental drift is when the continents drift apart and four evidences are rock distribution which is forms of minerals that turn into rocks. mountain ranges are a line of mountains connected high ground. evidence of glaciation is in earth climate.




 seafloor spreading is when the plate tectonics start to spread under the ocean and it keeps spreading.  a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.

Name 2 proofs that seafloors is spreading..How did they prove it? 

1. 

2.