Delta, Delta, Where is the Delta?

The three types of rock aren't classic, punk, and hard. The chapter covers everything scholars need to know about rocks. Pupils compare rocks, learn about their formation, see how rocks change, and follow every step of the rock cycle....

Students discover the types of batteries and their uses. They experience static electricity by rubbing glass jars and using it to raise their hair. After discussing the importance of recycling batteries and using ones that are...

Students describe stellar objects using terms such as stars, planets, satellites, orbits and light. In this sun and stars unit, students research stellar objects through seven individual lessons discovering star characteristics, how...

By constructing a watershed model and identifying watershed features in it, they discover how water erosion changes the landscape. As with most watershed modeling activities, this one is costly in terms of time and materials. It is,...

Proving that Entropy is a valid state variable is the focus of this chemistry video. Sal takes students back to his diagrams used to illustrate the Carnot Cycle, and uses those diagrams to prove that the state (A) which was used on the...

In this chemistry video, Sal teaches why work from expansion in an energy transfer takes up the space underneath the curved line of a PV Diagram. Pressure is on the left axis, and volume goes under the horizontal axis of the diagram. Sal...

Sal introduces students to the term, "enthalpy" in this chemistry video. He defines enthalpy as: the internal energy, plus the pressure times the volume found in a system. He constructs a PV diagram to illustrate this point.

Sal takes issue with a proof that some students suggested he use to calculate spontaneity in reactions. He contends that the proof is incorrect and uses this video to clearly illustrate his reasons why.

What do Newton's Laws have to do with getting from Earth to Mars?The activities in this resource show how Newton's Laws work with rockets to get them into space. Background information includes facts about orbits and how orbits are used...

Explore the water cycle in an interactive diagram of the process. The diagram shows how water is a moving system and constantly changing forms. The resourc includes vocabulary words that pupils click on in order to discover more about...