Challenge young scientists to design their own experimental procedures. They write the procedure for properly preparing two grams of a water-insoluble ionic salt. To finish, they perform the experiment and collect data to prove their...

We know about the light spectrum, the age spectrum, and sound spectrum, but do chemical reactions also occur on a spectrum? Young scientists experiment with partial reactions on a spectrum and observe the color changes. Then, they...

How do scientists determine when a solution is fully saturated? Scholars address the topic as they observe patterns of precipitation in various concentrations of ions. Using a well plate, pipette, and common chemicals, they collect data...

Don't overreact! A simple experiment demonstrates chemical reactions as scholars mix chemical solutions and metals in a large well plate. They note all changes to the metals, solutions, precipitate, colors, and more. A full data table...

Some of kids' favorite toys are the products of science experiments. Scholars follow precise measurements to mix and create their own slime and Play-Doh. They observe the changing textures and the chemical reactions throughout the...

Does the crystal structure of a hydrated solid determine the proportion of water absorbed, or does the application of heat change the absorption? Scholars experiment with both variables to determine the answer. They add their collected...

Many young scientists don't realize iron exists in two different forms in nature. During an enlightening experiment, they react iron with copper sulfate to cause a single replacement reaction. Then, they determine the correct...

More than 70 percent of people and 90 percent of businesses use spreadsheets regularly. While many courses overlook the important skill, the simple water lab focuses on entering spreadsheet data, formatting it, and printing plots based...

Many periodic tables mention specific heat, but how do scientists determine those numbers? Scholars attempt to find the specific heat of a metallic element by using a calorimeter. Three experimental trials ensure accuracy, and analysis...

Do your high school scientists know the four methods scientists use to communicate information? A simple experiment discovering the relationship between gas pressure and volume allows pupils to practice all four. After completing the...

Extinction events have happen throughout geologic history, but only five mass extinctions occurred over the last 4.5 billion years. Scholars view fossils from a layer of sediment during an extinction event and observe patterns to draw...

Substances that decompose with the help of living organisms do so at different rates. Scholars experiment with Winogradsky columns to determine the rate of decomposition, the oxygen and sulfide content changes, and bacteria levels. The...

Imagine a race to complete a puzzle where each person has the same 50 pieces, knows they are missing other pieces, and must figure out how everything fits together. The winner gets fame, listed in books for years to come, and a financial...

Scholars use data to analyze and determine which sets of information need to be counted. They create a model to explain differences among chemical elements using graphs to prove concept mastery.

A puzzle isn't about the individual pieces, but how they work together. Scholars assemble a puzzle and discover missing pieces. They write a description of what they expect these pieces to look like, including as many details as...

How do scientists identify which elements originate from meteorites? Scholars learn about a sample of material found in a remote location, analyzing the sample to determine if it might be from Earth or not. They study elements, isotopes,...

When given too much data to simply memorize, it helps to sort it into manageable groups. The second lesson in the six-part series of Cosmic Chemistry challenges groups of pupils to take a large amount of data and figure out how to best...

Many upper level tests require pupils to interpret written descriptions of scientific principles. Scholars practice the skill by working through three levels of difficulty. Each question covers kinetic energy, gravitational potential...

Many pupils struggle to categorize and organize related content. Multiple quizzes on a variety of topics offer practice for these specific skills. Scholars move items around until they think each is placed in the proper position....

Evolution occurs though change over time, but can it go any faster? Scholars speed up the process of evolution and observe a simulation of 20 blue organisms fighting for survival. A graph displays the changes in phenotype over time. By...

Scientists discovered the first exoplanet in 1995 and by early 2018, they confirmed the existence of more than 3,700—that's a lot of data! As part of the PBS 9-12 Space series, scholars interpret data about exoplanets. They compare...

Scientists detected exoplanets by measuring how the brightness of stars changed over time. Young astronomers interpret and analyze the same data that led to exoplanet discoveries. They learn to apply light curve graphs and connect the...

Scholars use current satellite data to view solar events, solar features, and so much more. It allows them to make videos over time to observe patterns and visually understand the sun at a much higher level using the interactive that is...

The majority of all confirmed exoplanets relied on Kepler's laws to discover their locations. Scholars learn how to apply Kepler's laws and then practice using data to discover exoplanets. They benefit from NASA video footage, NOVA...