# Ordering Rock Layers

```JAMBOARD
WHAT’S THE RELATIVE AGE OF THE FOLLOWING
ROCK LAYERS?
Directions: On a sticky note, write out
Is layer C older/younger than layer E?
Explain
Directions: On a sticky note, write out
explanation (ECR). Include your
name.
Three students in another class were discussing the rock
layers seen below. One student mentioned: “Strata D is
younger than strata F”
Explain if you agree or disagree with the statement
Directions: On a sticky note, write out
explanation (ECR). Include your
name.
Two students in another class were discussing the rock
layers seen below. One student mentioned: “Strata A is the
youngest”
What do you think about the student’s statement? Explain
CLUES FROM IGNEOUS
ROCK
❖ Lava that hardens on the surface
and forms igneous rock is called
an extrusion.
❖ An extrusion is always younger
than the rocks below it.
❖ When magma cools and hardens
into a mass of igneous rock
beneath the surface, it is called an
intrusion.
❖ An intrusion is always younger
than the rock layers around and
beneath it.
Directions:
1. In a text box, write the letter of
each layer in order from
youngest to oldest.
2. On a sticky note, explain how
you figured out the order. Include
What do you think about the order of
the strata show below?
1
B
E
D
C
A
Directions:
1. In a text box, write the letter of
each layer in order from
youngest to oldest.
2. On a sticky note, explain how
you figured out the order. Include
Order to the layers from youngest to
oldest
1
Directions:
1. In a text box, write the letter of
each layer in order from
youngest to oldest.
2. On a sticky note, explain how
you figured out the order. Include
Order to the layers from youngest to
oldest
2
Directions:
1. In a text box, write the letter of
each layer in order from
youngest to oldest.
2. On a sticky note, explain how
you figured out the order. Include
Order to the layers from youngest to
oldest
3
Directions:
1. In a text box, write the letter of
each layer in order from
youngest to oldest.
2. On a sticky note, explain how
you figured out the order. Include