How much do you know about the United States presidents? Put your knowledge to the test with an interactive crossword puzzle all about American government.

Control the spread of a contagious disease. An applet allows pupils to run a simulation on the spread of a disease. Rules govern how the disease is spread and the length of time it takes to recover. Learners view the spread visually and...

In this population learning exercise, students collect data on population by researching the Census Bureau and then make online graphs and answer short answer questions about the data. Students complete 5 problems total.

In this online interactive English vocabulary skills activity, students answer 10 matching questions which require them to fill in the blanks in 10 sentences. Students may submit their answers to be scored.

In this online interactive English skills worksheet, students respond to 20 multiple choice questions that require them to select the appropriate words to complete the sentences involving phrases using the word "keep." Answers are...