In this electrical worksheet, students answer a series of 6 open-ended questions about pulse-width signal generators. This worksheet is printable and the answers are revealed online.

In this electrical worksheet students design an intercom circuit and answer 2 open-ended questions about the volume control and microphone of the intercom. This worksheet can be printed and the answers to the questions are available...

Students explore and define electromagnets. In this electromagnet lesson, students access an assigned web site to research what an electromagnet is and how it works. They complete a database with information from the web site and...

In this basic fractions activity, 3rd graders answer ten multiple choice questions about fraction terminology and fraction equivalency. This is an interactive quiz.

Twelfth graders review the 6 identities of trigonometry. For this trig lesson, 12th graders review the importance of the right triangle as it relates to sine, cosine and tangent. They review the basic trig identities and how it relates...

Students conduct an experiment.  In this glaciers lesson plan, students learn about glaciers and then perform an experiment to show how glaciers shape the landscape around them.  Students draw a picture in their journals to...

In this ESL/ELL lesson, students read or listen to an article entitled, "Gap Inc. Launches Sweatshop Enquiry." They complete a variety of reading and discussion activities based on the article. They discuss clothing, childhood, and...

In this interactive grammar worksheet, 3rd graders select the appropriate gerund or infinitive from the drop down menu in order to complete the given paragraph. There are 16 fill-in's to complete.

In this Algebra I/Algebra II activity, students identify rational and irrational numbers.  The one page activity contains a combination of ten multiple choice and free response questions.  The answers are included. 

In this Integrated Algebra worksheet, students differentiate between rational and irrational numbers and locate irrational numbers on a number line.  The one page worksheet contains six problems.  Answers are provided. 

In this computer programming review worksheet, students answer 50 multiple choice questions on one and two dimensional arrays.

In this trigonometric identities worksheet, students solve 16 multi-part short answer problems. Students use the quotient identity and Pythagorean identity to simplify trigonometric expressions. Students factor trigonometric expressions.

Learners participate in ESL/EFL activities as they read an article about nuclear power plants. In this ESL/EFL lesson, students read an article entitled, "Germany To Close All Nuclear Power Plants." They work on building vocabulary,...

Learners examine solar, hydrogen, electric power. In this research based lesson, students will do simple investigations, view videos, discuss, and research how these three types of energy are used for power. They illustrate a...

Students explore amyloid proteins through a series of experiments. In this biology lesson, students explain the causes of Alzheimer's disease. They identify common symptoms related to this condition.

Students examine the causes and effects of alterations in a forest ecosystem and evaluate how human actions may only seem to have minor consequences, but can lead to extinctions of large numbers of populations. Students produce an...

The landscape impacted by glacier activity is drawn at the top of this worksheet. Ten multiple choice questions follow, some relating to the diagram, and some about the quality of soil left by glaciation. It is not often that you come...

The forestry presentation found here lists and describes a variety of tree diseases. A few unappetizing photos are included to show symptoms of some of these diseases, or the insects and fungi that cause them. If you have a class that is...

In this geometry worksheet, students identify the different measure of each angle. They rotate the rays around and make observations about the angles formed. There are 15 questions and lots of examples.

Learners explore the differences between parallel and series circuits by designing and constructing several different circuits. In small groups, they use miniature light bulbs, wires, and nine-volt batteries to build the circuits they...

Students explore the behavior of crickets during courtship. They measure the number and types of interactions between household crickets. Students discriminate between quantitative and qualitative observations. They collect data to...

For this vocational worksheet, students fill in the blanks of a contract with sixteen terms by placing them in the proper sentences. They also locate words in the contract that are synonyms for a list of contractual words.

For this alkanes worksheet, students compare the average standard bond enthalpy for common bonds. Then, students complete three short answer questions.

Learners solve a science mystery. In this biology lesson plan, students see how the delicate tissues of a tree bud are insulated so that they can survive the winter and learn how to determine the age of a branches and twigs.