Discover how to create new mountains, volcanoes, or oceans!
Photo Credit: Purpose To learn about sources of high-energy radiation and calculate student exposure to ionizing radiation over the past year.
If you find only 1/4th of the C14 in the object, it would have been through 2 half-lifes, and would be approximately 11,400 years old, and so on; however, there are many serious problems with this that are almost Let's say you were going to find a consistent number of grasshoppers in the world -- how would you begin?
You would literally have to be all places in the world at the same time in order to confirm the presence, or non-existance, of grasshoppers in all locations.
Purpose of activity: To reinforce learning about types of radioactive decay (alpha, beta and gamma decay). The idea for the game came from the card game "War" where you try to give your opponent all the cards.
The "nuclear" part refers to the nuclei of atoms.) NOTE: Information about the types of decay is given in the instructions so that it is possible to play this game without having already studied radioactivity.
Context This is the second lesson in a three-lesson series about isotopes, radioactive decay, and the nucleus.
Lake Geneva, WI [email protected] Grades: 7-8 (Spiraled) (See Geologic Time Scale II for the 8th grade activity) Overview of Lesson: Students will research the geologic time scale. Cascade Range Active volcanoes dominate the skyline of the Pacific Northwest.
Context This lesson was developed by the Challenger Center as part of NASA's MESSENGER Mission, of which Science Net Links is a partner.
Radiometric Dating Atom Decay and Half-Life Simulation.
A mild eruption may simply discharge steam and other gases, or quietly extrude lava.
A strong eruption can consist of violent explosions that send great clouds of gas-laden debris into the atmosphere, or may consist of explosions that blast sideways from a collapsed portion of the volcano, as happened in the 1980 eruption of Mount St. Eruptions can alter the land and water locally through lava flows, lahars, pyroclastic flows, and landslides.