Show:
Sedimentary Rocks
Light
Fossil Fuel Formation
Random
Electricity
100
How are Sedimentary rocks made?
Layers of Sediments and pressure
100

What is reflection?

Light energy bouncing off of a surface?

100
How was coal made?
Trees died, turned into peat, peat was covered by sediments and pressure from all the layers squeezed the water out of the sediments.
100

Why are there so many different kinds of sedimentary rocks?

They are made from different sediments.

100

Electricity flows through a closed path called a ______.

Circuit

200
What process really turns sediments into sedimentary rocks?
Pressure- remember the books on your hand? Not heat!!!
200

What two properties must an object have to be reflective?

smooth and shiny

200
What are the steps that created coal?
Lots of plants died Dead plants got covered up by sediments pressure squeezed the water out of the dead plants Lots of time passed and it turned into coal
200

How long does it take for sedimentary rocks to form?

Millions of years!

200

What does it mean if a circuit is open?

The circuit is off or not working

300
Why would we dig through sedimentary rocks?
To find Fossil Fuels and fossils
300

What is Refraction?

Light energy "bending" as it passes from one medium to another

300
What type of rocks are fossil fuels only found in?
Sedimentary
300

What is the first step in the formation of sedimentary rocks?

Breaking down of rocks into sediments.

300

What does it mean if a circuit is closed?

The circuit is on or working.

400
How do sedimentary rocks form?
Layers and layers of sediments pile on top of each other like the pages in a book, then the pressure cements them into rocks.
400

What do lenses do to light?

refract

400
If coal formed in swamps from dead plants and peat moss, then where did oil form and what is it made of?
Oil formed in oceans when lots of microscopic sea life died and got buried by sediments.
400

What two processes are responsible for turning sediments into sedimentary rocks?

Compaction and Cementation

400

What is a series circuit?

A circuit with one path for electricity to flow.  If one part opens the whole circuit is off.

500
Why are sedimentary rocks so important to Scientist and us?
They form in layers which create fossils and fossil fuels form in and under them.
500

How does light travel?

In a straight line

500
Why did they name oil, coal and natural gas fossil fuels?
They are called fossil fuels, because they form from the remains of once living organisms.
500

Most of the electricity in Texas comes from what source?

Nonrenewable fossil fuels

500

What is a parallel circuit?

A circuit with two or more paths for electricity to flow.