Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Oklahoma Algebra 1 End of Course Exam Sample Test D
Oklahoma-Algebra 1 End of Course Exam-Sample Test D assesses a variety of math concepts. Correct answers are confirmed. Incorrect answers trigger a text box with suggestions for getting the correct solution. As the items on the page are...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Oregon Statewide Assessment Practice Sample Test A
Oregon Statewide Assessment Practice-Sample Test A assesses a variety of math concepts. Correct answers are confirmed. Incorrect answers trigger a text box with suggestions for getting the correct solution. As the items on the page are...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Oregon Statewide Assessment Practice Sample Test B
Oregon Statewide Assessment Practice-Sample Test B assesses a variety of math concepts. Correct answers are confirmed. Incorrect answers trigger a text box with suggestions for getting the correct solution. As the items on the page are...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Oregon Statewide Assessment Practice Sample Test D
Oregon Statewide Assessment Practice-Sample Test D assesses a variety of math concepts. Correct answers are confirmed. Incorrect answers trigger a text box with suggestions for getting the correct solution. As the items on the page are...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Oregon Statewide Assessment Practice Sample Test C
Oregon Statewide Assessment Practice-Sample Test C assesses a variety of math concepts. Correct answers are confirmed. Incorrect answers trigger a text box with suggestions for getting the correct solution. As the items on the page are...
Houghton Mifflin Harcourt
Harcourt: Biographies: Robert Goddard
This is a detailed biography of the father of modern rocketry, Robert Goddard. It explains how he lived growing up and how be became so interested in space science.
Houghton Mifflin Harcourt
Harcourt: Biographies: Jonas Salk
An account of the man who developed the polio vaccine, Jonas Salk. Along with his biography, there are additional links to related articles and notes.
Houghton Mifflin Harcourt
Harcourt: Biographies: Charles Babbage
Charles Babbage, described as being "ahead of his time," built mathematical machines called Difference Engine #1, Difference Engine #2, and Analytical Engine. Read a brief biography, see images of Babbage's machines, and learn about his...
Houghton Mifflin Harcourt
Harcourt: Biographies: John Bartram
This is a detailed biographical account of the life of botanist John Bartram. Includes pictures and links to additional material for better understanding.
Houghton Mifflin Harcourt
Harcourt: Biographies: Alexander Graham Bell
This biography is a great resource for information on Alexander Graham Bell. Includes links for additional information also.
Houghton Mifflin Harcourt
Harcourt: Biographies: Benjamin Bradley
Learn about inventor and African-American slave, Benjamin Bradley, developer of a steam engine large enough to run the first steam-powered warship.
Houghton Mifflin Harcourt
Harcourt: Biographies: Annie Jump Cannon
This is a fantastic account of the life of astronomer, Annie Jump Cannon. Included in this biography are additional links to photographs of her tools and her accomplishments.
Houghton Mifflin Harcourt
Harcourt: Biographies: Albert Einstein
A fantastic account of Einstein's life in this biography. A detailed look at his life complete with additional links of information and photographs.
Houghton Mifflin Harcourt
Harcourt: Biographies: Enrico Fermi
Read about the work of Italian physicist Enrico Fermi and learn how he showed the world the power of the atom.
Houghton Mifflin Harcourt
Harcourt: Biographies: Robert Fulton
This biography is a great resource on Robert Fulton and what he had accomplished throughout his life. Additional links to photographs of his creations are available as well.
Houghton Mifflin Harcourt
Harcourt: Biographies: Johannes Gutenberg
This brief account of Gutenberg's life is an excellent resource. Additional links to photographs of his equipment and works are available also.
Houghton Mifflin Harcourt
Harcourt: Biographies: Edward Lorenz
This is an interesting biography about Edward Lorenz. It discusses his ideas about meteorology, such as using mathematical formulas to predict the weather, and his butterfly effect theory.
Houghton Mifflin Harcourt
Harcourt: Biographies: Guglielmo Marconi
This is an account of Marconi's life that discusses all of his discoveries up to his Nobel Prize awarded in 1909 for physics. Additional links for extra information are also provided.
Houghton Mifflin Harcourt
Harcourt: Biographies: Samuel F. B. Morse
An account of Samuel Morse's life and career, with links to related information. Uses popups for photos.
Houghton Mifflin Harcourt
Harcourt: Biographies: Norbert Rillieux
A biography of Norbert Rillieux. Offers a look at his struggles growing up and of his great accomplishments as an inventor. Additional links to supplemental material is available also.
Houghton Mifflin Harcourt
Harcourt: Biographies: Ernest Rutherford
This is an account of Nobel Prize winner Ernest Rutherford's life. It tells of his accomplishments in the field of chemistry and physics. There are additional links to supplemental material as well.
Houghton Mifflin Harcourt
Harcourt: Biographies: Carolyn Shoemaker
This is a biography of Carolyn Shoemaker. This account tells of her growing up with no interest in science, then discovering more comets and asteroids than any other living astronomer. Links to additional material and photographs are...
Houghton Mifflin Harcourt
Harcourt: Biographies: Eli Whitney
This is a great resource for Eli Whitney. Details his development of the cotton gin, and offers additional information through outside links.
Houghton Mifflin Harcourt
Harcourt: Biographies: Orville & Wilbur Wright
Brief biography on Orville and Wilbur Wright. Read how the Wright brothers' work with bikes, kites, and gliders led to human flight.