Unit Plan
University of Colorado

University of Colorado: Ph Et Interactive Simulations: Isotopes and Atomic Mass

For Students 9th - 10th
Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.
Interactive
University of Colorado

University of Colorado: Ph Et Interactive Simulations: Isotopes and Atomic Mass

For Students 9th - 10th
Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.
Unit Plan
CK-12 Foundation

Ck 12: Isotopes and Atomic Mass

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] In the following online tutorial students will be asked to define atomic number, mass number and understand how isotopes differ from one another. They will be able...
Unit Plan
CK-12 Foundation

Ck 12: Isotopes and Atomic Mass

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Students explain the workings of a mass spectrometer, and describe how this device is used to determine average atomic mass.
Unit Plan
Texas Education Agency

Texas Gateway: Average Atomic Mass

For Students 9th - 10th
A tutorial describing average atomic mass and how it is calculated.
Interactive
CK-12 Foundation

Ck 12: Chemistry Simulation: Average Atomic Mass

For Students 9th - 10th
[Free Registration/Login Required] Students explore how percent abundances of different isotopes affect the average atomic mass for that given element. Students form connections between the average atomic mass and a person's body mass....
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Investigating Isotopes and Average Atomic Mass Using Pennies

For Teachers 9th - 10th
In this activity, learners apply what they have learned about weighted averages, isotopes, and systems of equations to a new situation - coins in a sealed container. They learn some historical information regarding the composition of...
Lesson Plan
Science Education Resource Center at Carleton College

Serc: Investigating Isotopes: Using M&m's as a Model for Calculating Atomic Mass

For Teachers 9th - 10th
This activity allows students to gain an understanding of the relationship between the mass and relative abundance of an isotope and its effect on the average atomic mass of the element. Students will be given a random sample of the...
Unit Plan
Sophia Learning

Sophia: Isotopes: Lesson 2

For Students 9th - 10th
This lesson will define an isotope and demonstrate how to determine the average atomic mass of an element. It is 2 of 9 in the series titled "Isotopes."
PPT
Sophia Learning

Sophia: Isotopes: Lesson 8

For Students 9th - 10th
This lesson will define an isotope and demonstrate how to determine the average atomic mass of an element. It is 8 of 9 in the series titled "Isotopes."
Unit Plan
Sophia Learning

Sophia: Isotopes: Lesson 4

For Students 9th - 10th
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."
Unknown Type
Annenberg Foundation

Annenberg Learner: Isotopes, a Weighty Matter: Isotope Quiz

For Students 9th - 10th
You will be presented with three different isotopes of the same element. See if you can calculate the atom's average relative mass.
Handout
Environmental Chemistry

Environmental chemistry.com: Anatomy of an Atom

For Students 9th - 10th
Explains the basics of atomic structure, from simple definitions to information about quantum theory. Accurate and helpful basics whether or not you need the more advanced information.