Station 1

Fossils

1. Which fossil lived for the longest time?

2. How did you know?

3. Why is the fossil record not always reliable?

4. What is a disturbance in rock layers called?

5. What are some examples of these “disturbances”

Station 2

Relative Dating Diagrams

Station 3

Half-life

Time / Half Lives / Parent
0 / 0 / 10
70 / 1 / 5
140 / 2 / 2.5
210 / 3 / 1.25

Time / Half-Life / Parent
0 / 0 / 500
1
2

Station 4

Anatomical Structures

1.  This section is about anatomical structures. Complete the chart below to help you get started.

Homologous / Analogous / Vestigial
Address the following:
Functions
Structure
Common Ancestor

2.  Why do scientists study anatomical structures?

3.  Look at the diagram. What would these structures be considered? Why?

Station 5

Anatomical Structures

1.  List two traits that are shared between the hamster and chimpanzee.

2.  Circle which of the following organisms are closely related.

a.  Salmon and Lizard

b.  Salamander and Hamster

c.  Hamster and Chimpanzee

d.  Chimpanzee and salmon

3.  Compare the first and last stages of these embryonic development.

4.  Why is it important for scientists to study embryonic development?


Station 1

Fossils

1.  Which fossil lived for the longest time?

Trilobite

2.  How did you know?

It appeared in the most stratas (layers)

3.  Why is the fossil record not always reliable?

There are gaps in the fossil record; not all organisms get preserved, scientists haven’t equally searched all parts of the world, etc.

4.  What is a disturbance in rock layers called?

Unconformity

5.  What are some examples of these “disturbances”

Rock layers getting mixed around, animals digging, intrusions or dikes across layers

Station 2

Relative Dating Diagrams

Station 3

Half-life

Time / Half Lives / Parent
0 / 0 / 10
70 / 1 / 5
140 / 2 / 2.5
210 / 3 / 1.25
Time / Half-Life / Parent
0 / 0 / 500
3.8 / 1 / 250
7.6 / 2 / 125

Station 4

Anatomical Structures

1.  This section is about anatomical structures. Complete the chart below to help you get started.

Homologous / Analogous / Vestigial
Functions
Structure
Common Ancestor / Do not have same function
Have the same internal structure
Provides evidence of common ancestor / Perform same function
Do not have the same internal structure
No common ancestry / Performs no function
No longer needed (got smaller over time)
Provides evidence of evolution

2.  Why do scientists study anatomical structures?

Provides evidence of evolution

3.  Look at the diagram. What would these structures be considered? Why?

Homologous, similar bone structure but perform a different function

Station 5

Anatomical Structures

1.  List two traits that are shared between the hamster and chimpanzee.

Fur, mammary glands/claws or nails/lungs

2.  Circle which of the following organisms are closely related.

e.  Salmon and Lizard

f.  Salamander and Hamster

g.  Hamster and Chimpanzee

h.  Chimpanzee and salmon

5.  Compare the first and last stages of these embryonic development.

The organisms look similar in the beginning but then develop their own distinct features.

6.  Why is it important for scientists to study embryonic development?

It provides evidence of common ancestry and evolution