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Fossil Click-n-Learn. Welcome 4 th Graders! Click on the arrow to begin. If you ever want to return to the beginning click on the house. http://www.maropeng.co.za/images/uploads/fossil_lg.jpg, http://www.soil-net.com/album/Soils_Rocks/slides/Fossil%20Amonite.jpg. - PowerPoint PPT Presentation
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Welcome 4th Graders!
Click on the arrow to begin.
If you ever want to return to the
beginning click on the house.
Fossil Click-n-Learn
http://www.maropeng.co.za/images/uploads/fossil_lg.jpg, http://www.soil-net.com/album/Soils_Rocks/slides/Fossil%20Amonite.jpg
Remember how rocks can form layers…
Let’s speed up time and watch them form!
Ta da!
Which layer is the oldest? Click it.
Which layer is the oldest? Click it.
Correct! The layer on the bottom is the oldest.
Which layer is the oldest? Click it.
Oops! Try again. Click the button to go back.
When plants and animals die they may get trapped in the sediment
After long periods of time they can become fossils
Fossils can form in between the layers…
http://lovingthebigisland.files.wordpress.com/2009/06/fossil-fish-1.jpghttp://www.geosociety.org/graphics/gv/PikesPeak/03FossilWasp.jpg
Scientists can look at the animals that live today and compare them to the fossils we find from long ago.
Fossils teach us about the history of Earth…
Let’s Check it Out!
This is another tooth from a Megalodon!
Megalodon
http://www.fossilien.de/seiten/haizaehne/megalodon-.jpg
This shark lived millions of years ago.
WOW! It is bigger than 2 hands together!
Let’s compare Megalodon to the largest living shark today…
More Teeth…
These are teeth are from a Great White Shark
That means Megladon must have been…
http://files.tellmewhereonearth.com/Photos%20Sharks/greatwhites-stratosphere.JPG
HUGE!!!
HumanGreat White Shark
MEGALODON
http://www.fossilien.de/seiten/haizaehne/megalodon_weisserhai.jpg
Have you ever seen a beaver?
Maybe in real life or in a picture?
Let’s check out another fossil
http://static.open.salon.com/files/beaver1231206221.jpghttp://en.wikipedia.org/wiki/File:American_Beaver.jpg
During the Ice Age there was a beaver that looked a little different…
It could grow up to 8 feet long and weigh over two hundred pounds!It’s front teeth were 6 inches long!
http://en.wikipedia.org/wiki/File:Giant-beaver-fieldmuseum.jpg
Wow!
Look how big the skull is!!
http://www.boneclones.com/images/bc-071a-lg.jpg
Gia
nt B
eave
r
Today’s Beaver
Paleontologists can also look for things that are the same from fossils….
This is a fossil of a dinosaur
Does it look like it might have had feathers to you?
http://en.wikipedia.org/wiki/File:Sinornithosaurus_Dave_NGMC91.jpg
YES NO
Paleontologists can also look for things that are the same from fossils….
This is a fossil of a dinosaur
Does it look like it might have had feathers to you?
Paleontologist started to find more and more dinosaur fossils that had feathers….
http://en.wikipedia.org/wiki/File:Sinornithosaurus_Dave_NGMC91.jpg
YES NO
Now they know that some dinosaurs probably had feathers!
http://upload.wikimedia.org/wikipedia/commons/1/1f/Deinonychus_BW.jpg
http://planetdinosaur.com/site/images/stories/dinosaurs/Sinornithosaurus_feathered_dinosaurs.jpg
Weird!!
The first birds probably looked something like this…
http://www.dinosaurfact.info/wp-content/uploads/2009/08/Archaeopteryx.jpg
Paleontologist have used fossils to discover that the birds we have today probably evolved or came from dinosaurs
http://whatbird.wbu.com/img/4/707/image.aspx
http://pelotes.jea.com/AnimalFact/Birds/hkrdtal2.jpg
http://www.muralsforkids.com/images/BlueJay.jpg
LET’S LOOK AT ONE MORE!!
Look how the horses have changed too
Click on the horse that you think is living today
Look how the horses have changed too
Click on the horse that you think is living today
CORRECT! Today’s horses are much bigger than the first horses
Look how the horses have changed too
Click on the horse that you think is living today
Oops! Try again. Remember how small the horse jaw fossil you saw in science class was…
Wow! When we use fossils we can learn a lot about the different animals that used to walk the Earth.
CLICK BELOW TO GO BACK TO THE WEBSITE!
Fourth Grade Fossils