On the Caribbean islands, lizards expanded into different niches instead of competing for resources. Scholars discuss and learn from experts in a video how scientists prove the theory. They build phylogenetic trees based on appearances...

How does nature select some adaptations over others? Scholars experiment picking up seeds with two different types of tools simulating beaks. After practicing, they experience a drought where one type of seed suddenly isn't available....

The proteins inside a cell determine the shape of the cell. While most red blood cells have a circular shape, those with sickle cell take the shape of a sickle. This change in shape causes multiple issues in the system. Scholars solve...

How do mice have so much fur color variation over generations? Scholars illustrate protein structures based on amino acid sequences. Then, they analyze the signaling pathway in different-colored mice populations. This allows them to...

While many mutations are neutral, those that appear advantageous increase in frequency in a population. Scholars use illustrations to make predictions about populations of mice. They follow it up with a video to confirm or refute their...

Can you identify mutations just by viewing DNA sequences? Scholars apply prior knowledge of DNA sequences to do just that in an engaging activity. They transcribe and translate genes, thus identifying the locations of mutations. Then,...

What, exactly, causes lactose intolerance? Scholars view a video describing a Finnish study that determined why some people are tolerant while others are intolerant. They then use the data from the study to reenact the experiment and...

What does it take to create a scientific theory? Learners attempt to answer the question by studying the work of Charles Darwin and Alfred Russel Wallace. While watching a video, they track observations from each scientist and then look...

Simple characteristic changes can have a significant impact on species survival. A hands-on activity has learners investigate the color variation in pocket mouse populations in different environments. They connect the timing and number...

What is the best way to prepare for an AP® exam? Learners become familiar with the AP® Biology exam by completing a full-length practice exam. The AP® test prep by the College Board contains multiple choice, grid-in, and free-response...

Ever wonder how fish survive in freezing cold water—especially Antarctic waters? Some fish have an adaptation that lowers the freezing point of their life fluids. Learners model these adaptations in two lab explorations. The first...

High schoolers participate in the World Without Oil game as they examine the effects of a prolonged oil shortage. In this oil shortage lesson, students play the online game, World Without Oil, before making an audio clip based on the...

Learners create their own sculpture representing the idea of environmental responsibility and recycling. For this science lesson, students observe Les Constellations des Voisines du Pole by Joseph Cornell, make recycled...

Students investigate the characteristics of animals by creating a chart. In this animal life lesson, students create a KWL chart listing all the different animals a class can name. Students take a field trip to a science facility to get...

Eighth graders research about different types of volcanoes. For this earth science lesson, 8th graders create PowerPoint presentation on the information gathered. They share findings with the class.

In this science observation scavenger hunt worksheet, students use 10 riddles to find items hidden in an outside area then map the locations of each item.

In this science experiment worksheet, students mix borax, custard powder (pudding mix?), glue and water to make a bouncy ball. Students carry out bouncing and stretching investigations.

In this science exploration activity, students use a plastic mirror and a bowl full of water to get a fish's eye view of a water surface. Students follow the directions to conduct this investigation.

In this science investigation worksheet, students follow the directions to mix raisins in clear carbonated soda to watch them sink and rise.

Young scholars complete a germination activity to explore plants. In this plant science instructional activity, students create a neck pet that contains germinated seed to learn about the needs of plants. Young scholars grow the seed...

Young scholars investigate life science by answering maturity questions. In this human health instructional activity, students identify the changes which occur during puberty and answer study questions based on sexual awareness. Young...

In this science worksheet, students examine some random items and estimate the mass according to the measurements given. Then they complete the lab.

In this earth science worksheet, students complete a sheet by filling-in each blank with the correct response. They identify various types of dinosaurs and what they ate. Students also identify their various characteristics.

In this earth science instructional activity, students cut out each die pattern and the signs for each station. Then they assemble the dice by folding along lines and taping the edges together. Students also follow the written...