Chemistry

An archeological site in Flinnlandia was recently excavated and ancient artifacts were recovered! Now it's time for your students to become “real-world” scientists, determine the age of the artifacts, and see how long ago this civilization lived. Stu...

Find out how archeologists reconstruct the ancient history of the Earth using radiocarbon dating to determine the age of artifacts-everything from nutshells to parchment maps! Students “piece together” the process of carbon-14 dating by arranging a s...

Alpha, beta, and gamma radiation are quite different in terms of their composition and properties. Different types of nuclear radiation require different types of shielding to protect workers from its harmful effects. Radiation protection comes from ...

If seeing is believing, your students will finally believe that radioactive particles exist. The cloud chamber kit provides visual evidence of radioactive particles by observation of the fog tracks emanating from the radioactive sample.The cloud cham...

Track down radiation by the trails that it leaves! Just as “seeding” a cloud with crystal produces rain or snow, passing ionizing radiation though a cloud chamber saturated with vapor leaves a path of liquid droplets in its wake. Using dry ice, stude...

Radioactivity and half-life are sometimes difficult for students to understand. With this activity your students will readily grasp the general concepts of radioactivity and half-life determination. Using reusable, simulated plastic radioactive atoms...

The most comprehensive radioactivity shielding kit available! Using a safe, low-level radioactive source and radiation monitor, students determine the shielding effectiveness of a wide range of materials. Students will quickly recognize the differenc...

Nuclear stability and radioactive decay are important concepts to understanding nuclear chemistry, the size of the nucleus, and the energy that holds it together. In this engaging activity, students will determine the natural decay of uranium-238 to ...

Students model the process of radioactive decay by studying the “decay curves” for a variety of multi-sided dice. Radioactive decay is a spontaneous and completely random process. The probability that a specific atom will decay after a certain period...