Eighth Grade - A4.2-3: Geologic Time.
Last week, we learned that fossils give us a glimpse back in time. We also learned that thousands of fossils were found at the Rancho la Brea. That's one site! Millions of pounds of fossils covering only a few tens of thousands of years! The Earth is more than four and a half BILLION years old! In Social Studies you may cover 100 to 1000 years in a year at school. How do we take all that information and laid down over 4.5 billion years and learn about it in a week?
Answer this: How are these facts put in chronological order? How do we know that fossils are really that old? What can we learn from looking at the whole history of the Earth? What did Wisconsin look like in the various ages of the Earth? How did the changes to Wisconsin affect life in Wisconsin during those ages?
Contract 8 to be presented on Friday.
Seventh Grade - C4.3-4: From Clams to Insects.
This week we end our look at invertebrate animals animals. When we started, we thought all animals were generally the same. Hopefully, we are seeing there are some bizzare behaviors out there. Who knew that some animals try to save their lives by eviscerating themselves and regenerating. Weird stuff.
Answer this: What special adaptations do these animals have for survival? Compare and contrast each type of invertebrate we talk about to other invertebrates and to other animals in general.
Contract 8 asks you to again research a specific invertebrate from selected phyla.
253 comments:
«Oldest ‹Older 201 – 253 of 253How many different types of dinosaurs were there?
the carbonferious period had a wet climate, and many insects. shallow seas and some fish.
(Taylor, Holli, and Sophie)
The Silurian period...
The changes to Wisconsin affected mostly marine and fish life. The spread of jawless fish was everywhere and the first jawed fish also appeared.
Wisconsin was mostly all shallow seas and they had many reefs in them also. Because of the reefs much marine life grew here.
Go here: http://www.mpm.edu/collections/learn/reef/
The number of diosaurs was no different then the number of any other major group of organisms.
these are some things that lived at the time of this period
488.3million years ago second oldest period in the palezoic era.Dominated by marine invertabres
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lulia s and shelby g
Krissy Maas & Lindsey McCabe said
Wisconsin was glaciated several tines during the Quaternary and lies well north of the maximum extent of Quatrernary glacition.
http://www.uwec.edu/Geology/pdfs/KS104_Syverson&Colgan%202004_chapter25_wisconsin.%20overviewpdf.pdf
Is using half life a good way to find the age of fossils?
The Cenozoic era is the last major division of geologic time. It was lasting from 65 million years ago to the present.
CLIMATE:
Wisconsin's climate was generally hot and dry, forming typical red bed sandstones and evaporate. There is no evidence of glaciations at or near either pole; in fact, the Polar Regions were apparently moist and temperate, a climate suitable for reptile-like creatures. Pangaea's large size limited the moderating effect of the global ocean; its continental climate was highly seasonal, with very hot summers and cold winters. It probably had strong, cross-equatorial monsoons.
The Cenozoic is divided into two main sub-divisions: the Tertiary and the Quaternary. Most of the Cenozoic is the Tertiary, from 65 million years ago to 1.8 million years ago. The Quaternary includes only the last 1.8 million years.
XD
In the Jurassic period wisconsin was lush, green and had a hot yet humid climate, like rainforests today.The are was full of warm shallow pools that contained prehistoric mollusks and corals and other similiar creatures. Other animals in the area were small reptiles and prehistoric birds.
During the cambrian period there were many animals forming.They werer mostly water animals with no backbones and lived in shallow seas.
In the The Carboniferous period wisoncinis was coverd with basic plants and animails. Water was a main sorce becasuse we were on the shore, and this was when animals and plants started to leave the water for land.
the animal life in the cenozoic era was dominated by mamals..........Theories explaining the decline or extinction of mammals during the Pliocene and Pleistocene epochs of the quaternary have ranged from a change in climate to the predation of humans.......
The Cenozoic is the most recent of the three major subdivisions of animal history. The other two are the Paleozoic and Mesozoic. The Cenozoic spans only about 65 million years, from the end of the Cretaceous and the extinction of non-avian dinosaurs to the present. The Cenozoic is sometimes called the Age of Mammals, because the largest land animals have been mammals during that time. This is a misnomer for several reasons. First, the history of mammals began long before the Cenozoic began. Second, the diversity of life during the Cenozoic is far wider than mammals. The Cenozoic could have been called the "Age of Flowering Plants" or the "Age of Insects" or the "Age of Teleost Fish" or the "Age of Birds" just as accurately. XD
During the 65 million years of the Cenozoic Era (also spelled "Cainozoic"), or Age of Mammals, the world took on its modern form. Invertebrates, fish, reptiles etc were essentially of modern types, but mammals, birds, protozoa and flowering plants still evolved and developed during this period.
Traditionally, the Cenozoic Era was divided into two very unequal periods, the Tertiary (which made up the bulk of the Cenozoic), and the Quaternary, which is only the last one and a half million years or so. The Tertiary is in turn divided into Paleogene and Neogene. We do not adopt this use of the "Tertiary" as a formal stratigraphic division for the following reasons:
More than 95% of the Cenozoic era belongs to the Tertiary period, an unreasonable division which reflects the arbitrary manner in which the geological epochs were first named. From 1760 to 1770, Giovanni Arduino, inspector of mines in Tuscany and later professor of mineralogy at Padua, set forth the first classification of geological time, dividing the sequence of the Earth's rocks into Primitive, Secondary, and Tertiary. During the 18th century the names Primary, Secondary, and Tertiary were given to successive rock strata, the Primary being the oldest, the Tertiary the more recent. In 1829 a fourth division, the Quaternary, was added by P. G. Desnoyers. These terms were later abandoned, the Primitive or Primary becoming the Paleozoic Era, and the Secondary the Mesozoic. But Tertiary and Quaternary were retained for the two main stages of the Cenozoic. Admittedly, attempts to replace the obsolete "Tertiary" with a more reasonable division of Palaeogene (early Tertiary) and Neogene (later Tertiary and Quaternary) have not been completely successful, but most of the newer geological timelines have rejected the Tertiary.
me awesome XD
During the Cenozoic, the fragmentation of continental landmasses continued as the Earth's surface took on its present form. The major geologic events of the Cenozoic can be thought of as two basic processes. First, four different large fragments of the Gondwanan supercontinent moved north and became, to varying degrees, attached to the Laurasian landmass. This resulted in a number of spectacular mountain-building events which climaxed about the Early Miocene. Second, the north-south Atlantic spreading zone continued to widen the Atlantic, contributing to geologic strains in East Africa and the western parts of the Americas, as these continents were pushed into contiguous plates by the growing Atlantic Ocean.
I rock!!!!! XP
ok the Carboniferous period included ferns and fernlike trees; giant horsetails, called calamites; club mosses, or lycopods, such as Lepidodendron and Sigillaria; seed ferns; and cordaites, or primitive conifers. Land animals included primitive amphibians, reptiles (which first appeared in the Upper Carboniferous), spiders, millipedes, land snails, scorpions, enormous dragonflies, and more than 800 kinds of cockroaches. The inland waters were inhabited by fishes, clams, and various crustaceans; the oceans, by mollusks, crinoids, sea urchins, and one-celled foraminifera. In wisconsin this ment anything on the shore during the time period.
Surilian Period
the part of wisconsin we live in would have been under water in the surilian period but the northern part would have been on land. some of the animals that lived there would have been eurypterids, rhynchonelid brachiopods, trilobites, primitive fish, various types of corals, stalked crinoids, archaeogastropod, drifting graptolites, and nautilod cephalopod
if bones can be preserved in a bog then why not a river
in the permian period wisconsin was a large forest in witch reptiles and insects live
ok why? every boby why did all this happen?
during the Permian Period, Wisconsin looked somewhat like Africa with plants that are adapted to living in dry weather like ferns, conifers, and ginkgos. There were dry areas of sand and possibly dry grass like in Africa
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in the permian period wisconsin was dnse forest with reptiles and insects
In WI during the Devonian Period, there were protozoas, radiates, mollusks, and articulates, which are bacteria, and other small forms of life. Fish were introduced during this period, or known as the Hamilton Period.
What did archeozoic animal life eat?
What did Wisconsin look like in the various ages of the Earth?
In the beginning of the quaternary, ice covered most of the North America including Wisconsin. As the glaciers melted they formed the land such as the Kettle Moraine and also formed lakes and rivers as they melted.
How did the changes to Wisconsin affect life in Wisconsin during those ages?
Since it was colder so the animals needed more fur to get warmer.Even though many of the plants and animals of the Quaternary Period are almost the same as those living today, there are some differences. First, there were certain animals that were well-adapted to the cold climate. The wooly mammoth, mastodon, wooly rhinoceros, reindeer, and musk ox all developed thick fur to help them survive the frigid temperatures.
Make a video Mr. Hoopman. Or a song.
Jellyfish don't have brains or hearts.
Jellyfish are 95% water.
Injured corals develop colorful glowing (scabs) to help themselves heal
When a coral is broken or wounded, it releases highly reactive atoms of oxygen to close up the wound.
there are a lot of differnt typs of insects
The sea urchin mouth is on the bottom while the rear end is facing up\ top side. They need the mouth on the bottom side so they can by first stinging them and then the animal falls and the sea erchin has tube like feet to eat it. they also scrape algea off rocks. the anus is on the top side so the waste can go into the water and float away instead of sitting under neath the urchin. MK JS and AM
video of horned spider
insects are so cool
insects are arthropods.there is around 10 quintillian insects.95% of animals on earth is insects.beetles are the largest group of insects.one of every 4 animals on earth is a type of beetle.there 1,017,018 specieson earth.
They all have 4 characteristics in common. They have three body parts - a head, thorax, abdomen, and they must have six jointed legs and two antennae to sense the world around them from inside their exoskeleton.
why do jellyfish have poision?
the worlds largest worm called giant gippland earthworm can get yup to 6 ft long
whats the difference between a roundworm and segmented worm
segmented worms lived inside sponges about 545 million years ago
A new species of segmented worms living in methane ice at a depth of 700 m in the Gulf of Mexico, was discovered in July 1997. The worms are 2–5 cm in length and pinkish in colour.
there are 15,000 species of segmented worms
Crustaceans have exoskeletons that protect their insides. They also molt their hard exoskeletons when they are growing. So they hide from predators until their shell grows back because they are all soft when they molt their shell.
so invertabrates can have some sort of skeloton it is just not made up of bones right?
After we study vertabrates are we going to take the test????
http://www.youtube.com/watch?v=D3W4OCnHyCs
here is a video of an army of sea urchins destroying kelp
sea urchins are small,spiny,globular animals that are found in all oceans. They move slowly. the spines protect the sea urchin from predators.
Sea stars are found in shallow waters and deep blue seas. There are 1800 species of sea stars and they are not found in fresh water. Sea stars have microscopic eyes at the end of each arm which allows them 2 view movement and differentiate between light and dark.:)
What were all the typs of spiders called at the caves?
the caves were so cool i want to go again! :)
Mr Hoopman cani do the komodo dragon
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