Teacher resources and professional development across the curriculum
Teacher professional development and classroom resources across the curriculum
Learner Express: Modules for Teaching and Learning
Video Type
Filter results by:
In spite of the similarity in outlines between the Atlantic coasts of Africa and South America, continental drift could not be explained until the theory of plate tectonics was developed in the 1960s. Ocean floor mapping provided much of the hard evidence, but for those who wish to examine the interior of the Earth more than 15km below the surface, seismic waves provide the only clues.
On the Big Island of Hawaii, Volcanologist Dave Sherrod treads on the newest rock on the planet to show how quickly lava hardens when it emerges at the surface. View Video
Using hybrid fluid solid-liquid materials (such as Silly Putty®) in the classroom, students explore the concept of a flowing solid. View Video
The fact that the jigsaw-puzzle-like fit of the coastlines of Africa and South America looked as if they had been attached in the past gave rise to the theory of continental drift. View Video
Students in a playground act out an analogy for how temperature and pressure control the behavior of rocks in the Earth. View Video
Ocean floor features reveal the signature of tectonic plates, large, sometimes continent-sized rigid structures in the Earth's crust that can move independently of each other. View Video
Extreme drill holes for research have only reached 14km below the surface—less than 0.2% of the distance to the other side. View Video
A student's reasonable misconception is compared to the current scientific consensus in interpreting the evidence for the formation of the Himalayas. View Video
Fifth grade students start an investigation into how sound waves (P and S waves) can be used to reveal the structure of the Earth. View Video
Second grade students do a classroom activity that simulates how seismic waves travel through solids and liquids in the Earth. View Video
Slow Flowing Solids Explain Tectonic Plate Movement View Video
The opening of the Atlantic Ocean between two tectonic plates at a spreading ridge separated the two continents. View Video
Spreading ridge volcanoes form in the deep sea where two plates are moving apart. View Video