How can radioactive decay help date old objects? Learners explore half-life and radioactive decay by conducting an experiment using pennies to represent atoms. Young scientists graph data from the experiment to identify radioactive decay...

In this life science GED learning exercise, high schoolers complete a crossword puzzle given 9 clues about structures of the nervous system, the circulatory system, evolution, the digestive system, molecules and fossils. Students are...

Students present information about a species, its niche, and adaptations. In this lesson on animal environments, students explore how surroundings can affect a given population resulting in adaptation.

Students study the Evolution in the Light of Fossils. Activities in this lesson range from quantitative measurements of hominoid skulls to the comparison of hominoid bone structures. They hypothesize dinosaur size and speed by looking at...

Students identify fossils. They identify evidence of change over time when given pictures of fossils to determine the proper sequencing. In addition, they determine evolutionary relationships by comparing embryonic structures.

In this evolution worksheet, students review genetic variability, gene mutations, biodiversity and adaptations. This worksheet has 22 fill in the blank and 10 short answer questions.

Ice core samples give scientists access to climates of old—those from more than 800,000 years ago. Through an analysis of various temperature graphs from ice cores, tree rings, and weather stations, scholars compare historical climates...

In this evolution worksheet, students review the geological time scale and how evolution has taken place over time. This worksheet has 13 fill in the blank questions.

Students study human evolution and the scientific process. They complete the Origins of Humankind Web activity to become familiar with the hominid species as well as the associated evidence found, in the form of fossils and artifacts.

Students discover how palaeontologists conduct a dig for fossils and how they interpret the age of the fossils. In small groups, they prepare a "dig site" consisting of bones, rocks and soil layered in a cardboard box. They switch boxes...

High schoolers view a Power Point and complete activities related to genetic evidence of human evolution. In this molecular evolution lesson, students view and discuss a provide presentation. They search for the "tell-tale telomere" and...

Students discuss Hominid evolution through various websites and other resources. They examine online fossil skulls, discuss the use of tools by ancient man, and look for examples of sophisticated tools built by man.

Learners identify and analyze how the geologic time scale was developed by investigating 11 periods of time and the vast expanse of time of the Earth's existence. They study their period, determine the important factors indicative to...

High schoolers classify Archaeopteryx using pictures of actual fossils and scientist representations of how the animal might have looked. They compare Archaeopteryx's characteristics to those of the five extant vertebrate groups to...

Students consider two sets of simulated fossils (caminalcules) that are provided as cutouts. They arrange them on two time scales. One set produces a visual example of gradualism, the other shows punctuated equilibria.

In this early primate worksheet, students will read information about the fossil evidence of the earliest primates. Students will complete 3 short answer questions based on their reading.

In this evolution worksheet, students will complete a table by writing in the era and biological event based on 4 different time periods of Earth's history. Students will answer 8 fill in the blank questions based on the different origin...

In this Charles Darwin worksheet, high schoolers fill in the blank with the correct answer. Students use the suggested text to complete statements about Charles Darwin, his expedition, and his development of his theory of evolution.

Students collect and interpret data to make predictions about the levels of ozone in the atmosphere. Using the internet to collect data students use their collected data to create a line graph for analysis. Students make mathematical...

Students explore the classification system of organisms: taxonomy. They examine prepared slides of Protozoans and record information on a Taxonomy Recording Sheet. Two additional classifying activities are also included in this lesson...

Students identify some of the different species of crabs and tell how they adapt themselves to their environment. They discuss the evolution and stages of development of the crabs. They identify the Phylum Arthropoda and the Class...

Springboard your fourth and fifth graders into the study geologic time. They will complete 7 activities to learn about geologic time and the topics most often associated with it: astronomy, creation, planet formation, volcanology,...

Mammals are some of the newest organisms to appear on Earth. Young scholars complete an activity that results in a timeline showing the appearance of different types of living organisms. Provided with a list that spans from prokaryotes...

Young scholars estimate the number of living organisms they might find in their local environment. After researching the types of organisms that existed during various geologic time periods, students describe how life forms have changed...