Science NetLinks: Fossils and Geologic Time

More of a mini-unit than a lesson, these activities lead inquisitors through a survey of oil deposits. In the first part, they read about and view diagrams of sedimentary rock layers that trap oil. Next, they test porosity and...

Four activities demonstrate the chain reaction of nuclear fission to your physical science fans: falling dominoes, snapping mouse traps, throwing paper wads, and igniting a series of matches. They perform additional...

Engage young biologists with four laboratory activities that explore the fossil record. Learners examine fossil images, a fossil kit, the rock record, and geologic time scale. They even experiment with the oxygen production of an Elodea...

Practicing paleontologists map the geologic time scale, simulate the formation of sedimentary rock, and analyze fossil data. Instructions for four activities and five assessment choices are provided for the teacher. This comprehensive...

Theoretical physicists say that space and time are one thing created by the Big Bang. According to them, nothing happened in the time before the Big Bang because time did not exist. The first Crash Course-Big History video in a 16-part...

How do scientists know the history of Earth before humans—or any mammals—existed? An epic "Eons" series video explains the larger history of geologic time. It highlights the eons, eras, periods, epochs, and ages scientists use to divide...

One of the most abundant fossils on earth confused paleontologists for more than one hundred years. Viewers learn about the mystery and discoveries related to conodonts in a video from PBS as part of its Eons series.

Can we really grasp how old we are? Part of a larger series, the humorous video demonstration shows how humans fit into the history of Earth and just how long ago life formed. Viewers explore a timeline that identifies major markers in...

Scientists discovered the first law of thermodynamics 25 years after the second law of thermodynamics. The seemingly obvious discoveries sometimes confuse scientists while more complex challenges encourage extra study—and take more time...

Cartoon children compare the earth's age to timescales that we understand:a calendar year, the thickness of a book, the human lifespan. This smart film clip is definitely worth adding to your geologic timescale lesson! If you subscribe...