An excellent reference list of phrasal verbs: separable, inseparable, and intransitive. It includes concise examples of how they are used, and it can be printed.

An explanation and examples using italics/underlining when writing foreign words in a sentence.

A good resource that lists many ways to improve upon the clarity of a sentence. Includes examples and exercises for students.

An excellent resource for correcting potential sentence fragments. Complete with charts, examples, and exercises.

This is a very good synopsis of the uses of verb forms called gerunds, participles, and infinitives. Each section has a short practice exercise for which the answers are available.

This Nobel website on the life and scientific work of Robert A. Millikan includes a biography, images, and internet resources for further reading and research. Also included are the 1923 "Presentation Speech" which praised Millikan's...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

Digital creator Dylan Marron has racked up millions of views for projects like "Sitting in Bathrooms With Trans People" but he's found that the flip side of success online is internet hate. Over time, he's developed an unexpected coping...

Useful, extensive site for the Spanish-speaking ELL. This grammar section focuses on use of the articles "a/an" and plurals. A variety of interactive, self-correction exercises are provided. A "Teacher's Lounge," section is available...

This site features a punctuation practice exercise. Students have an opportunity to test their punctuation knowledge when they visit this interactive resource.

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

A very lengthy page from friesian.com discussing Bohr's theory of electronic energy levels and the explanation of commonly observed atomic emission line spectra. The concept of a photon and Einstein's observation of the photoelectric...

This page focuses on the need for proper citation of all sources including in-text, footnotes, and endnotes in the appropiate style.

This page focuses on the evidence to support points in an essay. Be sure you have enough support for each point and that the points are strong ones. It also suggests you double check both direct and indirect quotations in your paper to...

A list (with examples) of common errors in logic including the following: non sequiturs, hasty generalization circular argument, ad hominem, ad populum, and red herring.