Curated OER
Selected Elements
This collection consists of a slide on each of the following unrelated, but fascinating elements: einsteinium, curium, radium, radon, nobelium, seaborgium, silicon, magnesium, and postassium. You will not find detailed information on the...
Curated OER
Do Some Research: Who discovered Radium?
In this researching radium worksheet, students discover who discovered it, write a short report, and draw a picture. Students compete three activities.
Curated OER
Calculating Half-Lives
For this calculating half-lives worksheet, students will use a table with a list of various isotopes and their half-lives to answer 5 problems.
Curated OER
The Radium Girls
In this radium worksheet, 7th graders determine the substance used to make the dials of watches glow in the early 1900's. Then they explain why radium glows and what the three most common types of emissions from radioactive nuclei and...