Sometimes modeling is the best approach to working with microscopic particles. A lab investigation models a fictional element using pasta. The setup uses three different pasta types to represent three different isotopes. Learners...

How do we know how long ago a dinosaur lived or an ancient fire pit was used? Scholars learn about the application of carbon dating and half lives to discover things about the past. They adjust the amount of radioactive carbon in the...

At the end of a general physics course focused on light and electricity, you can administer this exam. Concepts covered include electromagnetism, circuits, induction, light rays, lenses and mirrors, characteristics of light, electron...

Space scientists investigate the cosmic phenomena in order to search for answers to possible origins of the solar system. They consider the concepts of elements and  isotopes. Data is analyzed looking at tje abundance of elements...

In this atomic weight and ions worksheet, students answer questions about isotopes of atoms and how it relates to atomic weight. They also write out oxidation or reduction reactions for given atoms undergoing loss or gain of electrons.

Scholars complete a crossword puzzle in this chemistry worksheet with 20 questions about chemistry concepts like atoms and chemical reactions.

Ninth graders explore the molecular structure of matter and how it can affect the physical characteristics of a specific material. They demonstrate that isotopes of an element have different masses. Students demonstrate that the rates of...

If you are willing to sort through this outline and overlook the portions relating to inaccessible videos, you will find a wealth of support for your introductory chemistry unit. Narrative is presented to help you help learners navigate...

In this radon and radioactivity worksheet, learners analyze the data of the isotopes of elements that occur in the decay series of uranium-238. Students answer 6 questions about the isotopes, their half-lives, their potential threat and...

In this half-life instructional activity, students are given a particular mass of an isotope of cesium and its half life. They are to determine how much cesium will remain after 90 years. They are guided through the problem solving process.

In this nuclear chemistry worksheet, students answer ten questions about radioactive decay, half life, electron capture and alpha emission.

In this 9th grade science review worksheet, students complete 63 true or false questions on topics such as atomic notation, isotopes, covalent bonds, Ohm's law, and electric circuits.

This lesson will define an isotope and demonstrate how to determine the average atomic mass of an element. It is 4 of 9 in the series titled "Isotopes."

This lesson will introduce isotopes, and explain how they differ from other elements. It will also show that some isotopes are unstable and emit particles and/or radiation. It is 5 of 9 in the series titled "Isotopes."