Artwork

An amazing scaled timeline of Earth's history

According to current evidence, Earth is old. Really old. So old that we can't really easily wrap our brains around how old it is.This amazing video puts Earth's history to scale on a football field, so we can make comparisons about the events which have happened on Earth over time.

The Law of Superposition

We loved learning from this PowToon video about the Law of Superposition and relative dating. We learned that sedimentary rock strata (layers) are formed one on top of the other, so that the oldest layers are on the bottom. This can help us put events in order using the concepts of relative dating.

An investigation to learn the Law of Superposition

I led the students through this investigation to learn how sedimentary strata are formed. Then we drew diagrams to represent the layers we made, and talked about which layers were oldest and which were youngest, based on our observations.

What are fossils?

Fossils can tell us a lot about the past. This video explains a little more about fossils, how they are formed, and what we can learn from them!

Plate Tectonics--A History

We are scientists, and have been investigating our world to see if we can make scientific arguments about how our world works, and what it used to look like.
We watched this video and looked for the components of a solid scientific argument: a claim, some evidence, and some reasoning.

Earthquakes awesome timeline map

This animation shows every recorded earthquake in sequence as they occurred from January 1, 1901, through December 31, 2000, at a rate of 1 year per second.

20th Century seismology revealed the global geographic distribution of earthquakes and helped to solidify the Theory of Plate Tectonics. Notice how earthquake epicenters do not occur randomly in space but form patterns over the earth’s surface, revealing the boundaries between tectonic plates as shown toward the end of this animation.