In this chemistry activity, students measure the different vibration levels of energy. They use the fundamental vibration frequency formula to calculate the Morse potential for a given chemical bond. There are 2 questions.

In this atoms crossword puzzle, learners read 15 questions about atoms and fit the answers into a crossword. This difficult puzzle has no word bank.

In this atoms and sugar molecules instructional activity, students are given the structural composition of the sugar molecule maltose. They determine the number of each type of atom in the molecule, they find the ratio of hydrogen to...

Students work in small groups with a small set of 8 nuts and 5 bolts to assemble into combinations of 1 nut: 1 bolt, and 2 nuts: 1 bolt. They explore the outcome and discuss. Then a student mixes two clear, colorless solutions together...

Students research chemical formulas and balance chemical equations.  In this chemical equations instructional activity students complete a class activity on chemical equations and answer questions.

In this science puzzle worksheet, students solve a crossword puzzle related to matter. For example, "Scientist who discovered protons."

In this Cold War worksheet, students read 3 brief selections about the conflict and then respond to 13 short answer and multiple choice questions based on the selections.

Young scholars study the Periodic Table to investigate basic properties of metals used to make coins. They discuss how historic events like the Civil War and Gold Rush had a direct impact on the trime.

Young scholars intergrate science, technology and society into exploring the periodic table. They investigate one element of their choice and write a one page paper on the elements discovery, properties, uses, and the effect on society.

In this strategy worksheet, students read about opinions and their proof, then use a "column note" graphic organizer to write an opinion on the left, and the support, or proof of the opinion on the left.

Students realize that density exists. They develop a mental model of density-to realize that something is going on that they cannot see to account for differences between materials.

Students apply their knowledge of relativity and nuclear radiation to the concept of cold fusion. They also read the article from the website listed in the related and resource websites and discuss the article with the class.

In this atom model worksheet, students explore how scientists developed the Bohr-Rutherford atom model. Students complete 15 fill in the blank statements.

In this elements learning exercise, students review the Bohr model and define negative and positive subatomic particles. Students compare molecules and compounds. This learning exercise has 11 short answer questions and 4 problems to solve.

Pupils experiment on magnets and electricity. In this physics lesson plan, students determine what factors affect the strength of a magnetic field. They design an experiment to determine how electromagnetic field strength varies with...

This is a chart of the elements including the atomic mass, atomic number, symbol, half-life, and more.

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.

[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...

[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.

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.

A tutorial describing average atomic mass and how it is calculated.

[Free Registration/Login may be required to access all resource tools.] Shows the calculation of mass number.

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...

[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....