In this grade 7 spelling worksheet, 7th graders use a word box to decode a set of 19 grade 7 spelling words. A reference web site is given for additional activities. 

Learners explain in their own words how radios work. In this technology lesson, students discuss the importance of radio today. They differentiate AM and FM bands.

Young scholars investigate the relationship between current and voltage in a series circuit. In this physics lesson plan, students measure the current across each light bulb. They predict what happens to the circuit if one bulb is blows...

For this English worksheet, learners read "Brazil Fury over Britain's Toxic Waste," and then respond to 1 essay, 47 fill in the blank, 7 short answer, 20 matching, and 10 true or false questions about the selection.

In this English instructional activity, students read "Britain's Sick Day Culture," and then respond to 47 fill in the blank, 7 short answer, 20 matching, and 8 true or false questions about the selection.

Students define what a redox reaction is. In this chemistry lesson, students electroplate some wires in the lab. They research the application of electroplating in the real world.

Students give examples of electromagnet applications. In this physics lesson, students explore what makes electromagnets work. They experiment picking paper clips with it.

Students explore series and parallel circuits. In this physics lesson, students construct a simple circuit and measure its maximum current. They construct their own voltmeter and ammeter that operates at a specified range.

Students investigate how series and parallel circuits work. In this physics instructional activity, students build their own simple circuits and compare their characteristics. They explain the importance of circuit breakers in household...

Pupils compare and contrast renewable and nonrenewable energy. In this environmental science lesson, students discuss the importance of going green. They identify the different components in a power grid system.

Students experiment with radio transmitters. In this transmission of waves lesson, students use an FM radio, an attenuate, and the frequency to locate a radio transmitter. Students discuss outcomes. 

Pupils examine the history of the United Stated defending the coast line. They also analyze how military technology has changed the way the coasts are defended. They discuss how military expenditures have affected their community.

Read about the development of a paper battery in Sweden. Includes video.

Simple homemade batteries are described that can be made from items found in the home or school lab. These experiments help students understand how to wire them up, the origin of current, voltage and power, as well as the chemistry that...

As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to electrochemistry. In particular, this site explores a range of topics related to batteries including primary and secondary batteries,...

Look inside a battery to see how it works. Select the battery voltage and little stick figures move charges from one end of the battery to the other. A voltmeter tells you the resulting battery voltage. Java required.

Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow through the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor temperature change. Java...

In this experiment, students will learn how to make a battery with a water solution and two types of metal. This is then used to power an LED light. Includes video demonstration.

Batteries are expensive to purchase in a store, but you can make one your self for exactly 24 cents. In this experiment, you will make your own voltaic pile using pennies and nickels and determine how many coins in a pile will make the...

A superb explanation of how a battery works. Discusses the associated chemistry which explains how a battery produces a voltage. Includes a series of "Confidence Building Questions."

Here you can find what you need to scientifically assess battery performance. In this exercise (that should take about one week) learn how batteries work, how they wear out and most importantly, how to make valid measurements to assess...

[Free Registration/Login Required] Explore how batteries use redox reactions to create electrical energy to power a flashlight.

A full listing of all Edison's battery patents. Not just titles and numbers, but Adobe Acrobat copies of the entire set of drawings and text from each patent application. This is heirloom stuff. With the available magnification, you can...

In this hands-on activity, students build their own two-cell battery. They also determine which electrolyte solution is best suited for making a battery.