Worms are the kings of the decomposers. A four-part lesson has learners experiment with the characteristics of earthworms and their sensitivities. They vary factors such as light, acidity, temperature, and touch of soil and observe the...

Young surveyors look for patterns in water flow around campus. Using a map of the school (that you will need to create), they mark the direction of the path of water. They also perform calculations for the volume that becomes runoff. The...

Trying to understand the vastness of outer space can be quite a challenge for young scientists. Help put things in perspective with this cross-curricular activity as students work in pairs creating scaled models of...

Many of the leading scientists in the world are studying climate change, and your learners can join in the discussion with a unit from the Will Steger Foundation. High schoolers work on eight lessons that focus on different aspect...

One of the most recognizable commercial melodies was written in 1977, and led to gastronomical relief around the world. Scholars use Alka Seltzer tablets to measure reactants and calculate the chemical equation for the reaction of NaHCO3...

Life is only a reflection of what we allow ourselves to see. The lesson includes three experiments on light reflection, light refraction, projection, lenses, and optical systems. Each experiment builds off the ones before and...

When will a wind farm pay for itself? Individuals calculate the anticipated annual revenue for two proposed wind farms. By comparing the number of years it takes to pay back the initial investment, they determine which site makes the...

Scientists used flame tests to identify elements long before the invention of emission spectroscopy. Young chemists observe a flame test of five metal cations in the fourth instructional activity of an 11-part series. Individuals then...

Titration calculations require concentration. The 10th instructional activity in an 11-part series challenges young chemists to use titration in order to determine the molarity and mass percent in concentrated vinegar. Analysis...

From 3-D cities to building bridges, young engineers engage in innovative STEM challenges that promote brainstorming and collaboration. Learners take on the roles of different types of engineers as well as become familiar...

Can you time the speed of your car perfectly so you only hit green lights? The challenge in the simulation is to alter the timing of the lights or the speed of the car in order to do just that. Scholars learn about angular speed as they...

Can your young chemists identify the most commonly used chemicals in the lab? Introduce the class to the go-to substances in most middle and high school chemistry experiments with an interactive. The resource offers timely feedback as...

Can your scholars solve the mystery of why salts dissolve? A virtual workbench allows them to experiment with temperature and solubility with no solution prep and no post-lab clean up! Users determine the solubility of a variety of...

Cell size is limited by the surface area to volume ratio, but why is this true? Scholars measure the surface area and volume of cubes before placing them into liquid. After a set amount of time, they measure the uptake by diffusion for...

Unravel the complexities of DNA research. Analyzing DNA data can be a daunting, time-consuming task; however, as the lesson explains, an interactive importance of the research outweighs its complexities. The presentation breaks down the...

Oncologists use DNA sequence data to identify specific cancers and offer more targeted treatments. Grasp an understanding of the complexity involved by learning how the body sequences and assembles DNA. Eager scientists explore the...

Scientists use many different kinematic representations of motion. Review each of them with the help of an engaging interactive that is part of a larger series on Newton's laws of motion. The resource provides three levels of challenge...

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...

Just as skin covers your body limiting what can go in and out, plasma membranes cover cells to do the same. Scholars begin with a presentation that gives overview of the structure and function of plasma membranes. Then, they learn how...

Learn to analyze vector addition on graph paper through multiple levels of practice problems. Pupils begin with two component addition and move through three and four components to prove mastery as one part of a series on vectors and...

No need to manufacture an excuse for learning about manufacturing. Scholar use an eBook to study manufacturing processes. The textbook covers milling machines, lathe machines, drill presses, bandsaws, surface grinders, heat treating,...

Don't waste all that carbon dioxide. Scholars first produce carbon dioxide by mixing baking soda and vinegar. They measure the masses of the reactants and products to verify the law of conservation of mass. As a culminating activity,...

How are chemical reactions affected by gravity? Learners explore the phenomenon of effervescence as part of the Christa's Lost Lessons series. They compare findings in an experiment on effervescence to a video of a similar experiment in...

What's all the buzz about electricity? Scholars take part in a scientific activity to test the conductivity of liquids and solutions. They first see if water, salad oil, alcohol, and vinegar cause a buzzer to buzz when electrodes are...