Download Objective: Describe the composition and structure of Earth.

Chapter 3 Section 1 B
Essential Questions: “How and why is
Earth constantly changing?”
Intro Question: "How do we know the
Earth's composition?"
Terms of Use: Tectonic Plates, Divergent
Boundaries, Convergent Boundaries,
Seafloor Spreading, Subduction,
Convection
New Standard (Don’t Copy)
• Evidence from deep probes and seismic waves,
reconstructions of historical changes in Earth’s
surface and its magnetic field, and an
understanding of physical and chemical
processes lead to a model of Earth with a hot
but solid inner core, a liquid outer core, a solid
mantle and crust. Motions of the mantle and its
plates occur primarily through thermal
convection, which involves the cycling of matter
due to the outward flow of energy from Earth’s
interior and gravitational movement of denser
materials toward the interior.
Primary Investigation
Write the questions and answer in a complete sentence
1. How do the plates move in a convergent
boundary?
2. How do the plates move in a divergent
boundary?
3. What do these movements tell you about
the Earth’s composition?
Movement of Earth’s Crust over
140 million years.
Drawing and Labels
• Draw the figures below to best of your
ability. Label using the Terms. Use the
handout to help you.
Terms of Use:
Tectonic Plates,
Divergent
Boundaries,
Convergent
Boundaries,
Seafloor
Spreading,
Subduction,
Convection
C.
A.
Concept Map
Tectonic Plates
Lithosphere under
the Asthenosphere
Convection
From Mantel Cause Movements
Divergent
Boundaries
Convergent
Boundaries
Crust Collides
together
Seafloor
Spreading
Subduction
Exit Slip
Write the question and answer in a complete sentence
Each dot
represents an
earthquake.
How does
earthquake data
give scientist
more clues
about tectonic
plates?
Rubric
Category/
Score
Exit Slip
4
3
2
1
All “terms of
use” used
correctly in
answer. Used
evidence to
clearly justify
answer with
examples.
Most “terms of
use” used
correctly in
answer. Used
evidence to
justify answer.
Some
“terms of use”
used correctly
in answer.
Used some
evidence to
justify answer.
Few of the
“terms of use”
used correctly
in answer.
Used some
evidence to
attempt to
justify answer.