The process of mud settling in a graduated cylinder was filmed as a time lapse series over about 2 hours. Students observe and analyze the sedimentation process.

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This activity is a printable one-page PDF handout, which focuses on dinosaur movement. Using illustrations that compare a crocodile's hips to a dinosaur's, students answer a series of questions. Fun challenges, Animal Push-Ups and Reptile Races, help students better understand how a hole in the hip socket differentiates dinosaurs from other reptiles.

In this activity, students play the roles of time travelers and travel to the Archaean era to learn what early Earth was like during that time. They collect information on the Archaean atmosphere, life forms, and landscape, and write a report that summarizes its characteristics. A scoring rubric for the report is provided.

In this activity, students play the roles of consultants in developing a geologic 'tour' south od Rochester, New York, near the Pennsylvania border. They will gather information on the local rock types and underlying geology, examine an assemblage of fossils from the bedrock and from glacial erratics, and prepare a report detailing the geology with cross-sections and a timeline based on the fossil occurrences. They will also develop a plan for a walking tour highlighting the geology of the area.

In this classroom activity, middle school students explore cladistics by creating a cladogram. The activity opens with background information for teachers about cladistics. After discussing the relationship of some familiar mammals, students learn about how scientists use cladistics to determine evolutionary relationships among animals. Working in pairs, students complete a worksheet that directs them to examine coins and create a cladogram based on their shared characteristics. Then, small groups of students examine dinosaur illustrations, identify their shared features, and those features to classify the dinosaurs.

In this classroom activity, middle school students gain an understanding of geologic time. The activity opens with background information for teachers about carbon and radiometric dating. In a classroom discussion, students share what they know about geologic time. Then, working in small groups responsible for different eras, students create a timeline for their assigned era by conducting library and Internet research. The activity concludes by having students review all the timelines to compare how long humans have been on the Earth to the length of time dinosaurs inhabited the planet.

In this classroom activity, young students learn what distinguishes dinosaurs from other animals. The activity opens with background information for teachers about these prehistoric reptiles. Working in small groups, students look through dinosaur books to gather interesting facts to share. As a class, students use their facts to create a semantic map. Then they explore the differences in dinosaur and lizard legs, and examine how these differences affect their stances. The activity concludes with a student worksheet that challenges them to identify the dinosaurs within a collection of animal illustrations.

In this classroom activity, young students explore the differences between bone and trace fossils. The activity opens with background information for teachers about fossils. After describing what a fossil is in their own words, students learn that a fossil is "any evidence of life that is at least 10,000 years old." They then explore the differences between trace and bone fossils by examining pictures. The activity concludes with a student worksheet that challenges them to identify trace and bone fossils.

In this classroom activity, middle school students learn what distinguishes dinosaurs from other animals. The activity opens with background information for teachers about these prehistoric reptiles. As a class, students compare the stance of lizards and dinosaurs in pictures and try to replicate both reptiles' walks. Students then learn that Museum paleontologists classify birds as dinosaurs, and work in groups to compare a T. rex skeleton with pictures of birds.

In this classroom activity, young students investigate what paleontologists can tell from a dinosaur's teeth. The activity opens with background information for teachers about dinosaur teeth. Students begin by looking at animal photos and describing each creature's teeth. They then conduct an experiment that helps them differentiate between the teeth of meat-eaters and plant-eaters .The activity concludes with a student worksheet that challenges them to identify meat-eating and plant-eating dinosaurs.

This article provides links to interactive web sites and lesson plans for teaching about paleontology, dinosaurs, and archaeology in the elementary classroom.

Integrated Digitized Biocollections (iDigBio https://www.idigbio.org) is the National Resource for Advancing Digitization of Biodiversity Collections (ADBC) funded by the National Science Foundation. Through ADBC, data and images for millions of biological specimens are being made available in electronic format for the research community, government agencies, students, educators, and the general public.

The iDigBio specimen portal (https://www.idigbio.org/portal) provides access to millions of records about neontological and paleontological specimens curated at museums and other institutions in the US. Records might include information about the specimen, when, where and by whom it was collected, the institution providing the data, images and other media related to the specimen.