Asteroids

Extinction events have happen throughout geologic history, but only five mass extinctions occurred over the last 4.5 billion years. Scholars view fossils from a layer of sediment during an extinction event and observe patterns to draw...

How far does the human hand reach?  Five interactive lessons lead classes through a unit exploring the human impact on ocean resources, pollution, and even extinction. Learners discover how their decisions affect the ocean...

99 percent of the species that have ever lived on this planet are extinct. The best way to understand when another extinction could happen is to study the previous five mass extinctions. The video discusses each one, the cause, the...

Extinction: i's not just for dinosaurs! Young ecologists examine the alarming facts about the causes of mass extinctions by watching this engaging Fuse School Evolution video. Topics include previous extinction events, living fossils,...

Dinosaurs owe their destiny to an asteroid. What are the chances humans will meet the same fate? A fascinating video lesson considers the probability of an asteroid colliding with the earth while taking into account variations in...

Extinctions constantly occur, but what sets off a mass extinction event? Young scientists study the data from the previous five mass extinctions to better understand their causes. Then, they learn the impact each extinction had on our...

Will human existence define an epoch? Many scientists think we are in a new epoch, the anthropocene, defined by humans and our impact on the environment. An online interactive demonstrates the immense impact humans have had on every part...

Normal background extinctions and mass extinction events are examined in this short video that suggests that environmental change, naturally occurring and change caused by humans, is the key factor in such events.

Flash back to 1801 to meet Ceres, the first asteroid discovery! Use a video lesson to learn how careful plotting and measuring led to the discovery of Ceres. Once lost, mapping the orbit led to new astronomy and new mathematics to...

If aliens visit Earth a million years from now, what will they find? Explore the Anthropocene epoch with a hard-hitting video. Viewers examine the changes humankind has made to the planet, how these overshadow events of the past, and...