Curated OER
Science: Quick Freeze
Students observe an experiment of freezing point depression using club soda. Through observation, they note that the carbon dioxide molecules disrupt the capacity of the water molecules to solidify. Precautions must be taken to assure...
Curated OER
Give Me Some Air!
Third graders examine how trees produce oxygen. They examine satellite images of the reservation they examining and interpret the number of trees on the land. They determine how natural resources should be used wisely.
Curated OER
A Town in Trouble
Students identify and describe the parameters and analytical techniques used to characterize water contamination in a class presentation. They identify the consequences of high contamination levels in the water supply during a class...
Curated OER
Potential Effects
Learners use the Internet to reserch the effects of climate change. Using that information, they relate those effects to specific items in the environment. They discover how climate changes affect their lives now and in the future.
Curated OER
Make Sense of Nature
Students participate in this program that heightens their awareness and curiosity of nature as well as their sense of adventure and exploring new surroundings. They identify and choose an object from nature after exploring it with other...
Curated OER
Bones or No Bones?
Students move to music and study bones and their purpose. When the music plays slow, gentle sounds the students have NO bones and their bodies are like Jello or an egg that has been cracked open on the floor . When the music changes...
Curated OER
Favorite Keyboard Shortcuts
Students study and learn to use keyboard shortcuts. In this computer usage lesson plan, students learn to keyboard shortcuts to use in Windows programs. Students practice using the shortcuts and may come up with their own as an extension.
Curated OER
Power In Variety
Students discover different types of energy. In this energy source instructional activity students compare different types of energy, renewable and nonrenewable. Students answer questions about the different types of energy and their...
Curated OER
The Quest For Power
Students investigate and apply properties of math. In this algebra and physics activity, students define important vocabulary words to create a basic understanding of keywords. They perform experiments using concepts of electricity and...
Curated OER
Scientific Investigation- Magnets
Students conduct a scientific investigation to determine if a magnet attracts paper clips through different materials. Students write out their procedures, collect data and present it in a table or chart, and analyze their results.
CK-12 Foundation
Ck 12: Physical Science: Direct and Alternating Current
[Free Registration/Login may be required to access all resource tools.] Describes the difference between direct current and alternating current.
National High Magnetic Field Laboratory
Magnet Academy: Alternating Current
Alternating current behaves differently, depending on what components are in a circuit.
BBC
Bbc: Gcse Bitesize: Mains Electricity and Alternating Current Aqa
This lesson focuses on Mains Electricity and Alternating Current. Electrical supplies can be direct current (DC) or alternating current (AC). The UK mains electricity supply is about 230V at 50 Hz. It explains the difference between AC...
Physics4kids
Physics4 Kids: Electricity and Magnetism: Alternating Current
Alternating current, defined and illustrated.
Other
Alternating Current Series Circuit
This site outlines a lab dealing with Alternating Current Series Circuit. It includes graphs and formulas, and a list of questions associated with the lab.
Tech Target
What Is: Alternating Current (Ac)
This site provides a brief explanation of what an AC current is.
Khan Academy
Khan Academy: Current and Resistance
Article explores direct current circuits, alternating current circuits, and the nervous system.
Science Struck
Science Struck: Difference Between Alternating and Direct Current
Explains what alternating current and direct current are and what they are used for.
CK-12 Foundation
Ck 12: Fourth Grade Science: Physical Science: Electric Current
[Free Registration/Login may be required to access all resource tools.] Defines electric current and relates electric current to different materials (insulators and conductors).
Other
Fayette County Public School: The Current War
A summation of the War of the Currents featuring Nikola Tesla and Thomas Edison against a backdrop of The Columbian Exposition and an execution.
Boston University
Elementary Physics: Current and Resistance
A general summary of electrical resistance including a comparison of AC and DC current.
Canada Science and Technology Museum
Canada Science and Technology Museum: Background Information for Electricity
The Canada Science and Technology Museum answers some of the most common questions about electricity. For example, get the definition of electricity, the difference between alternating and direct currents, and learn how a fuse works.
Physics4kids
Physics4 Kids: Electricity and Magnetism: Current
Explains electric current, how it produces heat, and the difference between a direct current and an alternating current.