Introduce someday scientists to ideas and explanations about how the world around us works by showing this cute cartoon. In it, Mia and Sam discuss what scientific theory is, and how it is important in discovering scientific laws making...

Theory or Law? You decide. And so will your class members, in an insightful interactive. Young scientists divide common scientific principles or statements between the two groups, then dig deeper in understanding the functions of...

Scholars analyze a propaganda poster against communism. The resource uses the poster to examine the domino theory and containment policies used by the United States to stop the spread of communism in Vietnam. Scholars work in pairs or...

The Big Bang Theory is more than a television show. Pupils read how Edwin Hubble observed other galaxies and noticed that the galaxies are moving away from each other. Scholars learn about the idea of the big bang and what happened next...

In this cell theory quiz worksheet, students complete an on-line game, clicking on questions and matching answer cards and scoring 1 point per correct answer. Printable version available also.

Scholars take off on an interactive spaceship to explore a historical timeline of the big bang theory. They learn about the evolution of mammals and humans, the formation of stars and planets, and the chemical composition of the early...

In this electrical worksheet, learners draw a schematic design and build a bipolar transistor to grasp the understanding of bipolar junction transistor theory before answering a series of 28 open-ended questions. Students analyze...

The universe is full of a mystic matter people cannot see. Pupils respond to 10 questions about the stuff in the universe. Most of the questions involve the big bang theory and dark matter. Learners find out how astronomers have found...

In this bonding activity, students take an interactive quiz with 15 multiple choice questions about the VSEPR Theory, bonding, the geometry of molecules, Lewis structures, resonance structures and enthalpy changes.

In this electrical circuit worksheet, students answer a series of 20 open-ended questions about AC motor circuits.  This worksheet is printable and the answers are revealed online.

Gaps are essential to engineering bridges and roads. Learners watch a video showing a typical construction of a bridge to see why they're so important. They then manipulate an interactive to model the effects of temperature change on the...

Connect Mendelian genetics with Darwinian theories. An interactive lesson lets pupils explore how George Shull used research from other scientists to explore genetic variation. The resource outlines the statistical analysis of genetic...

In this chemistry worksheet, students study the structure of matter and the kinetic molecular theory using an interactive online website.

Take a look at another alternating sequence. The resource provides a graphical display of a sequence that alternates between two values. Pupils use the display to determine whether the sequence has a limit. Given a theory of limit,...

How is a molecule's shape determined? Explore bond angles, lone pairs, and VSEPR theory through a logic-based activity. Chemists pull together information about the major molecular shapes, then use it to solve puzzles.

How do scientists discover treatments for cancer? A presentation and accompanying worksheet explain how one cancer spreads and a theory of how to stop it. It details the trials and relapses after using the medication. Scholars learn...

When DNA research first began, it required almost an entire day to extract the molecules from a cell nucleus. Now it requires less than an hour. Scholars learn about the early theories of DNA with an online interactive, videos,...

The breakthrough of Mendelian genetics solved many puzzles for biologists. Then, scientists decided to apply the theory to human behavior. Learn the story and struggle of finding a genetic explanation for hobbies, interests, and mental...

In 1993, Phillip Sharp and Richard Roberts won the Nobel Prize for their discovery of split gene theory. Learn about the breakthrough with the help of an online interactive. Hear both scientists explain it in their own words, watch an...

Most people support the idea of an independent judiciary in theory until they hear about a court case that violates their principles. An informative resource explains why the concept is important. It also provides scholars of criminology...

In this conditionals worksheet, students watch videos and complete the sentences with the correct verb tense, and choose the correct option for sentences. Students complete 4 activities.

Explore the birth and possible death of the universe. An interactive simulation allows learners to manipulate the Hubble Constant to model the expansion of the universe from birth. Varying the constant provides different scenarios for...

Salt is the go-to material when people need to melt ice—learn the chemistry behind its effectiveness with an interactive lesson. Pupils watch a short narrative and then explore the concept through a simulation. Young scientists...