A Self Directed Inquiry into the Identification of Unknowns

Acids and bases have a love-hate relationship. They balance each other so nicely, but they are complete opposites! Learners use these concepts and titration to calculate the molar mass of an unknown substance. The experiment document...

Sometimes, despite the best laid plans, the unexpected will occur. Learners witness this firsthand as they carefully design an experiment to determine the time needed for ice to melt in salt water or pure water. They uncover facts not...

Did you know the hole in the ozone is seasonal and filled by January every year? The lesson uses scientific measurements of the ozone over the South Pole to understand patterns. Scholars learn that the hole grew bigger annually before...

Silver: more than jewelry, it's also a natural antimicrobial agent. An inquiry-based lesson asks collaborative groups to design and implement an experiment to test this property. Using samples of silver nanoparticles and a strain of...

What does it take to train your brain? Learners explore the question as they experiment with their own memory and motor skills. They attempt to trace an object using a mirror and then score their results over several trials. They then...

There's absolutely no error in using the tutorial! Learners use spreadsheets to create column or bar graphs with error bars. They also learn how to calculate the standard error of the mean in the tutorial. This is the third installment...

High schoolers conduct a series of experiment on incandescent and fluorescent bulbs. For this physics lesson, students explain how they operate. They compare the efficiency and power rating of both bulbs.

Much like humans, orangutans learn by watching. They use tools in their everyday lives to live more efficiently. But displaying self-identity is true intelligence. Wow your class with a video that showcases the brilliant orangutan, and...

Students investigate which diaper is the most absorbent. For this chemistry lesson, students calculate how much water is absorbed by diapers. They identify an unknown powder based on physical and chemical properties.

Learners use density to identify what metal a gold colored weight is made of. They use a spreadsheet to graph the experimental density of common metals and compare the know densities to their calculated density of the known metal.