In this physics activity, students solve and write short answers to 19 questions on time-delay relays. They explain how the mechanism works and calculate the amount of delay in seconds.

In this electrical circuit worksheet, students answer a series of 21 questions about sum of product and product of sum, and Boolean expression for a logic circuit. They design and build a circuit board using  PC-board relays to show...

Students compare Saturn's moons to the Earth's moon.  In this moon instructional activity students work in groups and complete a lab activity then answer questions. 

Students discuss a natural disaster. In this earthquakes research lesson, students discover why earthquakes happen, what happens after an earthquake, and what to do during an earthquake. They discuss some information as a class and work...

Middle schoolers discuss the salt marsh. They define the following terms: habitat, water, land and air. Students work in small groups. They are asked why are they going to a salt marsh? Middle schoolers discuss whose habitat is it at...

In this science worksheet, students use basic scientific concepts to complete the series of puzzles that are intended to increase science literacy and focusing upon plate tectonics.

Students explain how the earth makes fossils and how dinosaur remains become fossils. In this Bringing Dinosaurs Back to Life lesson, students solve paleo-puzzles which ask students to solve problems as if they were paleontologists....

Young scholars create a classroom zoo for large-group science learning. In this early childhood science instructional activity, students develop their language, science, creativity, and fine motor skills as they research zoo animals and...

In this electrical circuit activity, students answer a series of 4 open-ended questions with schematics about audio control in stereos. This activity can be printed and the answers are available on-line.

In this physics worksheet, students construct an electric circuit based on specific requirements. They complete 48 short answer questions related to the circuit.

In this electrical circuit instructional activity, learners answer a series of 11 open-ended questions about BJT amplifiers and how to troubleshoot these circuits. This instructional activity is printable and the answers are revealed...

In this physics worksheet, students design and build an electrical circuit using LED as a light source. They complete 2 short answer questions about their design.

In this physics instructional activity, students answer 4 short answer questions on protective relay circuits. They explain how differential relay works.

In this physics worksheet, students solve and write short answers to 15 questions on segment decoder circuits. They interpret and analyze schematic diagrams and answer questions that follow.

Middle schoolers explore shipwrecks. In this forensic lesson, students watch a video about a shipwreck and how scientist use forensics to answer questions about the ship. They research and report about a shipwreck from the teacher's...

Students investigate the digestive system. In this human biology lesson, students read an article about the digestive system and go onto a suggested website to review what they have learned. Students are asked questions as an assessment.

Students as a class create a fountain using both coke soda, and mentos candy. For this science lesson, students test which combination of coke and mentos products produce the tallest fountain. Students use the scientific method to track...

Students watch a demo which is a modification of an enzyme lab which is done as a "magic show". It's primary purpose is to tickle the curiosity of the student and grab interest before discussion of enzymes. It is also used to stimulate...

Students are asked to recount their greatest hopes and fears concerning DNA. One article states how worthwhile gene manipulation in plants can be. Classroom discussions arise after reading one article on this issue.

Students participate in a modified demo enzyme lab, a "magic show." The purpose of the demo is to tickle the curiosity of the student and grab their interest before discussions of enzymes. Its purpose is also to stimulate problem solving...

Students read a text about blood groups and answer such questions as what, where and why regarding a scientific discovery. They complete vocabulary worksheets, comprehension exercises and utilize problem solving skills to decide who...

Students use a mathematical simulation of genetic drift to answer questions about the factors that influence this evolutionary process. They run a series of simulations varying allele frequency and population size and then analyze their...

Students research and define a muscle biology research question and organize an experiment to address the question utilizing either NADH staining or acid buffering. They analyze data as well as draw conclusions about their research....

Young scholars share ideas about how scientists know about dinosaurs, then read a news article about the recently found remains of a hadrosaur. In this dinosaur lesson plan, the teacher introduces the article with a class discussion and...