Designed to use when teaching adults preparing for their high school equivalency exam, the resource integrates reading practice, writing, and analytical thinking in every lesson. The unit covers 23 topics, but it only includes three...

In this atom learning exercise, learners review the subatomic particles, the scientists associated with the atomic theory, and the periodic table. This learning exercise has 15 matching, 24 fill in the blank, and 11 short answer questions.

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

Learners explain historical findings such as Rutherford and Bohr's contributions, explain wave particle duality, and formulate Heinsenberg's uncertainty principle. They also draw s, p, and d orbitals, explain more historical findings,...

Because of the work of John Dalton, we are able to write formulas for compounds. The hands-on experiment has scholars prepare a compound from its elements. Using mass data, individuals write the empirical formula for the compound.

In this atom worksheet, students read about Dalton's contributions to the structure of the atom. They answer five questions about Dalton's ideas, the law of multiple proportions and the law of definite proportions.

In this atom worksheet, students read about the history of the discovery of the atom. Students write a story, poem, song or other creative project in which they shrink to an incredibly small size and are trapped in a carbon atom.

In this Dalton worksheet, students read about John Dalton and his contributions to understanding the atom. Students are given sample data for Dalton's experiments and they answer questions about the data in his experiments.

In this science instructional activity, students examine how the universe is bound with the atomic particles and focus upon the findings of two historical scientists.

In this online interactive grammar skills worksheet, students examine 10 sentences that are missing words and select the appropriate words to complete each of the sentences and match them to the sentences. Student answers are...

A chemistry tutorial highlighting historical development of the atomic theory of matter and the periodic table of elements.

An article describing Dalton's atomic theory. Learn how this theory was the first attempt to describe a fundamental part of matter, atoms. Article also discusses where the theory is incorrect based on the knowledge we have today.

Resource investigates the beliefs of Dalton's atomic theory which consists of four parts. Which points do we still use today, and what have we learned since Dalton?

In this module students explore how matter is classified, the history of atomic theory, subatomic particles, modern atomic theory, electron configuration, the periodic table and its trends, and spectroscopy.

This is an excellent site with information on the discovery of the atom and the different models. Includes a sample question and answer using Planck's constant.

This complicated yet interesting article describing the discovery of asymmetry between the behavior of matter and antimatter.

A very descriptive site that allows students to understand the different states of matter at the atomic level. Also discusses the process of phase changes and displays phase change graphs. Thermochemistry is also touched upon for high...

This tutorial reviews over the basics of atomic structure.

Travel back in history and visit the laboratories of Priestley, Lavoisier, and others. Take part in simulations of the experiments which laid the foundation for the scientific field of chemistry. Learn about the discoveries which lead to...

A guided lesson explaining Democritus' description of matter as discontinuous.

The beginning of an informative tutorial on antimatter, covering quarks, hadrons, baryons, mesons, leptons, and neutrinos.

[Free Registration/Login may be required to access all resource tools.] Students take a closer look at how our understanding of the atom has evolved over time.

A wonderfully written non-technical introduction to antimatter, as well as a brief discussion of the investigation into the asymmetry between the quantities of matter and antimatter observed in our universe.

How do we know what matter is made of? The quest for the atom has been a long one, beginning 2,400 years ago with the work of a Greek philosopher and later continued by a Quaker and a few Nobel Prize-winning scientists. Theresa Doud...