The Discovery Of Radioactivity: The Dawn of the Nuclear Age

In this radioactivity activity, students write the mass number and atomic number for the missing element in the reactions. Students identify the isotope that is more stable and determine the half-life of the isotope. This activity has 10...

In this nuclear power worksheet, students compare fission and fusion. Students learn about the different kinds of radiation. This worksheet has 2 short answer questions and 10 matching questions.

In this chemistry review worksheet, students explore their knowledge of solutions, acid and bases, nuclear reactions, and radioactive decay as they answer 33 matching, fill in the blank, and short answer questions.

Learners read opposing views on the lead contamination issue, identify the facts and opinions in each article, and infer the opinion of the author. They create an essay expressing their opinion on the issue complete with citations.

For this chemistry worksheet, students complete 85 multiple choice and short answer questions on various chemistry topics to prepare for the final exam.

In this interactive Internet  assignment, physical science investigators answer 11 questions about the atom, the subatomic particles, and atomic structure. They can click on "Reveal Answer" to discover if they are correct. They also...

"Everyone is entitled to their own opinions... but they're not entitled to their own facts." Michael Specter, a well-respected science and technology journalist, speaks eloquently about modern attitudes toward science and progress and...

Students develop a sense of geologic ("deep") time and the ways in which Earth scientists construct the geologic time scale. They study he major events that shaped Earth, including the origin and evolution of its lithosphere, atmosphere,...

Students investigate the characteristics of lessons that are necessary to deliver a great curriculum. Teachers take the role of students to follow the path a comet travels through space. They create simulation models for the possible...