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Science 5: Fossil Fuels and Sedimentary Rocks 34 Views


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Description:

Did you know that we're basically powering all our cars with dead things? Check out this video to find out how...and to maybe have some creepy dreams...

Language:
English Language

Transcript

00:13

When you think about hard workers rocks may not be at the top of

00:17

your list well unless the job is to just stay completely still for years on end [rocks by the oceanside on a beach]

00:20

rocks rock at doing that but it turns out sedimentary rocks are super

00:26

important when it comes to making fossil fuels luckily they're not usually

00:29

responsible for pumping fossil fuels at your local gas station you're going to [car pulling up at a gas station for fuel]

00:33

be waiting a while while you wait let's start by figuring out what sedimentary

00:37

rocks actually are there are three main types of rocks in the world igneous

00:41

metamorphic and sedimentary they're all fun and really important but today we're [very large sedimentary rocks in the background]

00:45

going to focus on sedimentary rocks sedimentary rocks started out as

00:49

sediment a mix of sand silt dirt and tiny pebbles sediment collects at the bottom

00:54

of valleys or different bodies of water like lakes oceans and seas new layers of [sediment at the bottom of an ocean bed]

00:59

sediment collect on top the old ones building up until there are bunch of

01:02

layers of sediment all piled up on top of each other kind of like the way dirty [a bedroom with dirty laundry strewn everywhere]

01:06

laundry can pile up under floor except there's no parents at the bottom of the

01:10

ocean will make you clean it all up well for millions and millions of years all

01:13

of those layers of sediment create pressure and heat cementing the sediment [sediment at the bottom of the ocean heating up]

01:17

together into sedimentary rocks which is all well and good if you want to make

01:21

sedimentary rocks for what does it have to do with fossil fuels well sediment

01:25

isn't the only thing that collects at the bottom of bodies of water when it [a baby doll at the bottom of the ocean bed]

01:28

comes to making fossil fuels dead plants and animals are even more important than

01:32

the hidden treasures of the deep when the bodies of plants and animals sink in

01:36

a body of water they collect at the bottom with the sediment and more and [plants and animals falling to the bottom of the ocean]

01:40

more layers of sediment collect those bodies get trapped in the sediment and

01:44

after 300 million years of decomposition those bodies turned into fossil fuels

01:48

those layers of sedimentary rock provide a secure hiding place where fossil fuels [oil machine pumping into the sedimentary rocks]

01:52

can flourish and as an added bonus they can really help you out if you're

01:56

interested in winning any hide-and-seek championship you know providing you

02:00

don't mind sitting deep underground in a huge pool of oil for a really long time [a boy sitting in a pool of oil underground]

02:03

what a winner oh snap!

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