Transcript Limestone Ingredients Basins

Limestone Ingredients
Basins
• Observations and profile-view drawing
• What two rocks are in our basin?
• In nature, what materials are sandstone
made of?
• In nature, what materials are shale made
of?
• What kind of environments could you infer
these rocks would form in? What are
characteristics of these environments?
What is the next layer we need to
add in our basin?
• LIMESTONE!!!
Limestone
• In your groups, discuss limestone and the
environment limestone would be formed
in. Use the sample given to you and your
notes and observations you’ve made so
far.
• Write down your ideas in your notebook.
Limestone
• What was an interesting observation we
made about limestone, a characteristic
that none of the other rocks had?
• What happened when you put hydrochloric
acid on the rock?
• What caused the fizz?
• Can anyone remember the name of the
material that reacted with the acid?
Limestone Fizz
Limestone Environment
• Limestone is created in a seawater
environment.
• What in this environment could create
calcium carbonate?
• In your groups, make a list of things you
know are in seas that could contribute to
making calcium carbonate.
Testing Your Ideas
• We don’t have any of the ancient animals
that lived in the sea millions of years ago.
• But, we do have the sea water.
• I have prepared some water similar to
ancient seawater.
• We have the seawater, but we need to
simulate animals living in it.
How could we simulate animal life
in our seawater samples?
• What we will be doing is introducing
carbon dioxide into the environment.
• How could we do that?
• We exhale carbon dioxide, therefore, we
will be exhaling and blowing bubbles into
our seawater.
The Special Ingredient in Our
Seawater!
• This water is not plain water, it has a
chemical called calcium hydroxide.
• This chemical dissolved in water is called
lime water. Ancient seawater contained
this chemical.
Lime Water Procedure
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Open lab books Page 37.
Read through the procedure.
Follow the procedure carefully.
REMEMBER TO MAKE
OBSERVATIONS!!!!!
Our Experiment
Control
• What is a control?
• Controls are used in science to have
something to compare our results against.
• Our control will not have carbon dioxide
introduced into it, therefore, you can
compare what effects the carbon dioxide
had on your seawater.