Food storage matters! Scholars learn how the amount of water in corn can affect its rate of spoilage. They create a control group, then test three corn samples stored in three different locations for water activity. As a result of the...

Warsaw, Poland, suffered much of the blunt of World War II—but according to Polish letters from the early days of Nazi occupation, other parts of the country were much worse off. High schoolers use the letters and contemporaneous...

Has your class been repelled by your previous magnetism lesson plan? Try a fun interactive instead! The activity, part of the Static Electricity series, challenges scholars to infer the charges of a group of magnets based upon their...

Tommy is trapped on an ice bridge and needs you to balance the charges so he doesn't fall into the icy water! Scholars apply Coulomb's Law, which relates to both the strength and the distance between charges. They work with these two...

Semipermeable membranes allow water to go through—but not larger molecules. The simulation encourages pupils to adjust the membrane pore size to understand how this works. It also provides a way to trace the movement of a single molecule.

Young historians delve into the world of teenage refugees during WWII to understand their experiences. The activity focuses on a writing assignment from a teen staying at a US refugee camp to explore the struggles they faced, such as...

A six-question interactive tasks scholars with adding binary numbers one through eight. A tool acts as a visual aid to showcase the patterns made when working with base—2, digits zero and one. Question types include fill in the blank,...

Diffusion rates change with differences in temperature. See it happen through a simulation that allows scholars to explore the rates of diffusion at five different temperatures. It also allows young scientists to trace the movement of a...

America's entrance into World War I drastically changed the scope of the conflict. An interactive map and timeline takes learners through the Meuse-Argonne Campaign, which lasted from September 26, 1918, to the eventual German armistice...

Proportions and percents are the focus of an interactive designed to boost math proficiency. Five questions challenge participants to solve candy-themed word problems. A color-coded tool with moveable parts assists mathematicians in the...

How many of the world's greatest composers were born in Austria? Or Germany? Or the United States? An interactive map provides young musicians with information about prominent composers in the last few centuries, as well as the periods...

Scholars demonstrate understanding of kinematic graphs through matching dot graphs to position time graphs, dot graphs to velocity graphs, and a mixture of the two. If users feel stuck or confused, a Help Me! button offers an explanation...

Scholars explore the procedure for bacteria sampling in a virtual lab by first walking through a detailed step-by-step procedure of preparing the samples of raw milk and pasteurized milk, growing the bacteria, and comparing results....

Two men want drinks and the first orders H2O. The second man orders H2O too, but he dies. Scholars apply their knowledge of H2O2 and other everyday chemicals during the activity. They match chemical formulas to common chemical names in a...

Three Latino Americans are the focus of an interactive that spotlights their accomplishments. Scholars get to know Lin-Manuel Miranda, Judy Reyes, and José Hernández through short informative text and videos. Participants read, take...

Challenge mathematicians to crack the binary code with an interactive that focuses on numbers nine to 16. A table reveals exponential equations to aid in answering multiple-choice questions. A discussion question gauges comprehension. 

Does molecular mass affect the rate of diffusion? The simulation allows scholars to experiment with diffusion while varying the molecular mass and temperature. The timer automatically stops when a certain point is reached, making it easy...

An interactive equipped with five questions challenges mathematicians to convert between fractions, decimals, and percents. A diagram changes its size to visually depict conversions alongside symbols to compare them. Question types...

A six-question interactive tasks mathematicians to solve addition and subtraction problems using front-end estimation. Question types consist of multiple-choice and true or false. A set of wooden beams that can be measured using moveable...

What's the point in saving water? Surprisingly water isn't a forever resource because it is a natural resource. Here, young water conservationists hunt for 23 wise water users and water wasters by clicking on the people in the...

The fall of Singapore in World War II was shocking news for the Allied forces—but why? High schoolers explore primary source documents and videos to determine why February 15, 1942 was a wake-up call to the British Empire and its allies...

Eight questions challenge mathematicians to multiply decimals. A color-coded tool with movable parts assist participants in answering word problems. Item response types include fill in the blank, multiple-choice, and a discussion. ...

An interactive comprised of five questions challenges young scholars to complete a simple pattern. After examining a train with colored carts, learners arrange a green, blue, and yellow block into their corresponding space. Questions are...

In this online interactive English vocabulary skills activity, students answer 10 matching questions which require them to fill in the blanks in 10 sentences. Students may submit their answers to be scored.