A short article by Dr. Sean B. Carroll detailing the discoveries covered in the film The Day The Mesozoic Died.
A lesson in which students analyze the chemical data that led researchers to conclude that the K-T boundary layer contained an extraordinary concentration of iridium.
A lesson in which students read a passage and answer questions about the information presented, testing their non-fiction reading comprehension.
A worksheet in which students calculate how much iridium was released, and eventually deposited all over the Earth, by the impact of the asteroid that caused the K-T extinction.
A hands-on activity in which students see first-hand the difference in foraminifera fossils below and above the K-T boundary.
A worksheet in which students write down the evidence that led to the discovery that an asteroid struck Earth about 66 million years ago, causing a mass extinction.
A lesson in which students calculate the mass, size, and kinetic energy of the K-T asteroid based on the total abundance of iridium in the K-T boundary layer.
A lesson in which students analyze graphs and data on pollen grains and fern spores to form a picture of the living landscape before and after the K-T mass extinction.
This hands-on activity requires students to “visit” different K-T boundary sites.
A hands-on activity in which students analyze the results of genetic crosses between stickleback fish with different traits.