Earth didn't always have oxygen, so what caused the change that allows humans to live here? Learn about the change in O2 levels throughout geological history through an interactive graph. Each section offers greater detail on the changes...

In this online interactive reading comprehension activity, students respond to 12 short answer and essay questions based on A Portrait of the Artist as a Young Man. Students may also access an online quiz on the selection using the...

In this online interactive history worksheet, students respond to 9 short answer and essay questions about Charles Darwin. Students may check some of their answers on the interactive worksheet. 

Everything evolved from a common ancestor, but how did modern plants and animals develop so many more genes? Scholars use an online interactive to learn about the process. They begin to understand common genes with an animation, multiple...

Chromosomes contain keys to history including links from royalty to Neanderthals. Young scientists learn about Ivan Wallin's research into chromosomes with an animation and videos. Then, the concept connects to mysteries related to...

In this English idioms worksheet, students interpret the meaning of various idioms based on clothes and clothing.  Students complete sentences using the meanings of the idioms.

In this reading comprehension worksheet, students read an extract from Darwin's book The Voyage of the Beagle.  Students answer 12 comprehension questions in 15 minutes in this SAT practice worksheet.

Explore the evidence of evolution with this interactive worksheet based off of NOVA's Evolution Lab. This resource is designed to be completed while playing through the Evolution Lab game and contains multiple choice and free response...

The resource discusses fossil evidence of the intelligent design. The interactive activity explores five well-known fossil transitions that indicate Darwinian evolution in action. The activity consists of a printable version and...

Teach aliens about evolution as you play this game, and review your own understanding in the process. Topics covered include evolutionary mechanisms, evidence of evolution, natural selection, reproductive isolation, population genetics,...

Explore the evidence for human evolution in this interactive timeline - climate change, species, and milestones in becoming human. During the period of human evolution, the Earth's climate has fluctuated between warm and cold. Some of...

This multimedia article includes animations, pictures, video, biographical information, and quiz questions that are accessed by clicking on buttons along the bottom of the page. Here you can see how common genes are evidence for common...