Investigate the theories of human evolution. In this research based lesson, learners research and discuss how geographic isolation, interbreeding, generalization, and specialization are factors in the history of humans. Groups work...

Comparative anatomy prevails in the lesson exploring diversity among invertebrates. Biologists examine physical characteristics of an earthworm from phylum annelida and a meal worm from phylum insecta. They also inspect a cricket and a...

Assess your young scientists' understanding of the difference between observation and inference with this 20-question multiple choice quiz. It reviews a variety of physics and astronomy concepts, such as solar eclipses and sunspots, the...

Test your learners' sensory awareness with three hands-on activities that ask pupils to use their other senses to identify and describe everyday objects hidden from sight.  

Are you looking for a good, solid lesson on sedimentary rocks? This one, produced by the Illinois State Museum, is just such a lesson. Middle schoolers identify common rocks and minerals by analyzing sediments from local water sources....

Ancient coral beds give scientists clues to past ocean temperatures in much the same way that tree rings indicate historical weather conditions. High school scientists examine coral oxygen isotope ratios and plot the data as a function...

Advanced chemistry classes compare the polymerization of styrene using two different initators: benzoyl peroxide and aluminum chloride. Once they synthesize polystyrene, they compare the two producet for melting point and density. There...

Students identify the properties of a magnet. In this physics lesson, students explore the strength of the magnet by testing out how a magnet reacts to various materials. The various objects the students test include paper clips, paper,...

Soil scientists gain experience with an infiltrometer can to determine the infiltration rates at different locations on campus. If you are using the entire unit, the class has already analyzed water flow and soil types, so they should...

A set of PowerPoint slides supports a lecture or class review of weathering and erosion. Viewers learn the definition of each and examine various photos for evidence. Erosion is further depicted as caused by wind, water, and ice....

Introduce your physics or astronomy class to Kepler's laws of planetary motion with this straightforward instructional activity. It covers the basic concepts of each and has learners answer questions to demonstrate their grasp on them....

How can the circulatory system compare to a city map? Pupils distinguish the "roadways" and "vehicles" of the cardiovascular system, compare the anatomy and function of veins and arteries, and review different types of blood cells with...

Is your class in another dimension with regards to dimensional analysis? Give them some extra practice with a straightforward activity. Learners convert units by following concise step-wise examples, including setting up the...

Through a hands-on activity, an acetone-spinach solution is pre-made and learners use this solution to separate the pigments found in spinach using chromatography. The comprehensive resource includes an analysis and conclusion...

Here's a resource ideal for independent learners who need extra reinforcement or would like to work ahead. These textbook chapters and practice problems cover many basic physics concepts, starting with potential and kinetic energy and...

Round and round in circles it goes! A hands-on activity has learners recreate a model of a convection cell. They watch as the difference in density of their materials creates a current.

Sunrise, sunset ... swiftly move the shadows! Pupils practice comparing shadow length data with a hands-on activity. The resource allows users to examine and measure the shadow cast by a stick as the sun moves overhead before testing...

Assist your high school class with researching and applying the principles of gravity so they may further understand why Einstein is so widely recognized, even today. Individuals compare and contrast two different models that demonstrate...

In May of 1981, the Winter Park Sinkhole in Florida first appeared and is now referred to as Lake Rose. Scholars learn about the causes of sinkholes through an inquiry project. Then, they analyze recent data and draw conclusions to...

Clean up the environment with a lesson that focuses on replacing hazardous cleaning supplies with green, environmentally-friendly products. Using a dirty patch of surface as a control area, kids clean other parts of various surfaces...

Demonstrate lift to the class that is studying aerodynamics. In the stream of air produced by a blow dryer, little physicists place a wad of tissue paper and a spherical figure to compare. Or, if you have a vacuum cleaner and beach ball,...

Can you disprove the law of conservation of mass? Pupils observe the teacher weigh each part of a reaction. Then, the teacher weighs the result of the reaction and everyone sees that the products do not equal the reactants. Then they...

Three activities make up an introductory lesson designed to create a strong foundation in comparing fractions to decimals and exploring and building decimal models. Pupils brainstorm and complete a Venn diagram to show how decimals and...

Ancient people used musical pipes as early as the third millennium BCE. Young scientists explore the workings of musical pipes to better understand the relationship with frequency, length of pipe, and sound waves. They determine the...