In this online interactive English vocabulary skills worksheet, learners 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 verb tense activity, students complete a ten question multiple choice on-line interactive activity about the proper subject and verb agreement in sentences.

In this affect versus effect usage worksheet, students complete an 11 question on-line quiz. They choose the sentence in each example that includes the proper usage of the word affect or effect. They check their answers on-line.

In this jobs worksheet, students look at pictures and pick the correct job, unscramble job words, listen and write job words, and more. Students complete 6 activities.

In this "Who Am I?" quiz activity, students examine the 12 clues regarding noteworthy scientists born between 1452 and 1951. Students identify the scientists and click on links to check their answers.

Take on the role of the Surgeon throughout a total knee replacement surgery.

Perform a virtual heart transplant in nineteen easy steps with this interactive feature from the NOVA: "Electric Heart" Web site. This interactive feature provides an in depth and realistic look at this procedure.

A guide to the heart, lungs, and circulatory system, and surgical procedures of the heart. Includes many digital images. Lesson plans with pictures and video instructions are very helpful.

Explore the human body like never before. Resource presents hundreds of interactive anatomy pictures and descriptions of thousands of objects in the body.

This resource presents brief information defining a heart attack. The article also contains many links to related topics and publications in English and Spanish.