Mystery Math
Amaze your friends with a simple math trick that uses the digital root.
Stem Discipline:
Mathematics
Grade Level:
Grades 6-8, Grades 9-10, Grades 11-12
Read more about Mystery Math
Let's Make Oobleck
I bleck, you bleck, we all bleck for Oobleck! Just in time for Halloween! Joanna and Steve show you how to make your very own version of the slimy, green material described in Dr. Seuss' Bartholomew and the Oobleck!
Stem Discipline:
Chemistry, Material Sciences
Grade Level:
Grades 3-5, Grades 6-8, Grades 9-10, Grades 11-12
Read more about Let's Make Oobleck
How to Make a Cloud Chamber
A cloud chamber is a simple device that allows you to observe the decay of radioactive materials. Learn how to build your own! While it isn't difficult to build, it does require dry ice, isopropanol and a source of radiation, all of which are commercially available. If you do decide to build your own cloud chamber, download and read the Material Safety Data Sheets for dry ice and isopropanol. If you don't understand how to use these materials safely, do not do this experiment.
Stem Discipline:
Chemistry, Physics
Grade Level:
Grades 6-8, Grades 9-10, Grades 11-12
Read more about How to Make a Cloud Chamber
How to Draw an Atom
Learn how to draw a Bohr model of an atom based on information in the periodic table, such as at atomic number, atomic weight.
Stem Discipline:
Chemistry
Grade Level:
Grades 6-8, Grades 9-10, Grades 11-12
Read more about How to Draw an Atom
Radioactive Half Life Experiment Calculations and Results!
The calculations for determining the half-life of barium-137m are modeled! Links within the video are available for data collection trials.
Stem Discipline:
Physics
Grade Level:
Grades 9-10, Grades 11-12
Read more about Radioactive Half Life Experiment Calculations and Results!
Radioactive Half Life Experiment Collect the Data!
Five trials of data collection in an experiment to measure the half-life of barium-137m. Choose your detector and start collecting data! Links within the video are available for other data collection trials.
Stem Discipline:
Physics
Grade Level:
Grades 9-10, Grades 11-12
Read more about Radioactive Half Life Experiment Collect the Data!
Radioactive Half Life Experiment Equipment Overview
Use Jefferson lab equipment to measure the half-life of a radioactive isotope, barium-137m! Links within the video are available for data collection.
Stem Discipline:
Physics
Grade Level:
Grades 9-10, Grades 11-12
Read more about Radioactive Half Life Experiment Equipment Overview
Paramagnetism
What happens when liquid nitrogen and liquid oxygen are exposed to a strong magnetic field?
Stem Discipline:
Chemistry
Grade Level:
Grades 6-8, Grades 9-10, Grades 11-12
Read more about Paramagnetism
Liquid Oxygen and Fire!
What happens when nitrogen and oxygen are exposed to fire?
Stem Discipline:
Chemistry
Grade Level:
Grades 6-8, Grades 9-10, Grades 11-12
Read more about Liquid Oxygen and Fire!
Lightning Rods
A Van de Graaff generator is used to demonstrate how lightning rods work!
Stem Discipline:
Chemistry, Physics
Grade Level:
Grades 6-8, Grades 9-10, Grades 11-12
Read more about Lightning Rods
Thunder and Lightning
Thunder and lightning are created using a Van de Graaff generator!
Stem Discipline:
Chemistry, Physics
Grade Level:
Grades 6-8, Grades 9-10, Grades 11-12
Read more about Thunder and Lightning
Opposites Attract and Likes Repel!
An electroscope can be used to show that opposite electric charges attract and like electric charges repel.
Stem Discipline:
Chemistry, Physics
Grade Level:
Grades 3-5, Grades 6-8, Grades 9-10, Grades 11-12
Read more about Opposites Attract and Likes Repel!
