Snickers Relative Dating Lab

• 1. Cut the chocolate off of one side of your snickers bar• 2. Draw and label the four main layers of your snickers bar • 3. Cut a fault into your snickers and piece it back together off

center• Redraw• 4. Tilt one half of your fault and stick snickers back together.

Redraw• 5. Point out inclusions• 6. Weather and erode top couple layers of snickers. Leave

angles! Redraw• 7. Now use bit of frosting to add another layer of sediment… add to drawing and label unconformities

Snickers Relative Dating Assignment

Caramel and Peanut LayerCaramel and Peanut Layer

NougatNougat

Top chocolateTop chocolate

Bottom chocolate layerBottom chocolate layer

Relative DatingThere are 3 Rules that allow scientists to date rocks

LEARNING CHECK 1Which layer on your snickers bar is the youngest and which is the oldest

LEARNING CHECK 1Which layer on your snickers bar is the youngest and which is the oldest

LEARNING CHECK 2Is the fault you cut into the snickers older or younger than the snickers rock around it?

LEARNING CHECK 2Is the fault you cut into the snickers older or younger than the snickers rock around it?

LEARNING CHECK 3Can you point out where old rock is now above young rock… does that make it

younger?

LEARNING CHECK 3Can you point out where old rock is now above young rock… does that make it

younger?

The bottom chocolate layer is now above the younger layers Because of the tilting

So sometimes the rules don’t apply…

LEARNING CHECK 4What are the inclusions in your

snickers bar? In reality are they older than the stuff they

are in?

LEARNING CHECK 4What are the inclusions in your

snickers bar? In reality are they older than the stuff they

are in?

InclusionsLearning Check: 5

Label two different areas where your rocks have been lost forever and new rock has overlaid.

Learning Check: 5 Label two different areas where your rocks have been lost forever and new

rock has overlaid.

Unconformities

WarmUp (2-8-13)

A.

B.

C.

Which letter is pointing to the oldest layer?

Which law of relative dating explains how we know?

A – Law of Superposition

Agenda:1.WarmUp

2.How It’s Made3.Snickers Lab

4.Rock Clip

Agenda:1.WarmUp

2.How It’s Made3.Snickers Lab

4.Rock Clip

Lottery #3 Geoscience

• WarmUps ____/____• Paleozoic Poster ____/15 pts2 facts for each period and 3 pics • Mesozoic Poster ____/ 9 pts2 facts for each period and 3 pics • Cenozoic Poster ____/ 5 pts• 2 facts for each period and 3 pics• History of the Earth Movie Facts ____/ 20pts

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