Space Awareness
Star in a Box
What happens to stars as they get older? A simulation takes pupils through the life cycle of stars based on their masses. The resource introduces the Hertzsprung-Russell diagram and the common relationships and life cycle patterns observed.
Space Awareness
Coma Cluster of Galaxies
Scientists classify everything from the smallest cells to the largest galaxies, but how do they decide on a classification system? Scholars use 40 pictures of galaxies taken by the Hubble Space Telescope to sort and try creating their...
Space Awareness
Navigation in the Ancient Mediterranean and Beyond
Ancient texts, like Homer's Odyssey, mentions navigating ships by observing constellations. Pupils learn about the link between history and astronomy as they relate to navigation in the Bronze Age. Scholars complete two hands-on...
Space Awareness
Britannia Rule the Waves
Could you determine longitude based on measuring time? Early explorers used a longitude clock to do just that. Scholars learn about early exploration and the importance of the invention of the clock. Then pupils build their own longitude...
National Institute of Open Schooling
General Characteristics of the p-Block Elements
The 20th installment in a series of 36 focuses on the characteristics of the p-block elements. Learners discuss, read about, and answer questions pertaining to the occurrence of these elements in nature, their electron configurations,...
Curated OER
Equilibrium Calculations
The equilibrium constant does not change — as long as the temperature remains unchanged. Here's presentation that briefly reviews equilibrium constants before working through four practice problems, including three calculating...
Curated OER
Weather and Climate
It's hot today, but is that the weather or the climate? This colorful presentation isolates both concepts to allow for better understanding by covering the positioning of the planet, making comparisons of land versus water, and looking...
US Geological Survey
The Water Cycle for Schools: Advanced Ages
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...
Santa Monica College
Mole Ratios and Reaction Stoichiometry
Stoichiometry sounds complicated, but it really means the study of the amount of substances involved in a reaction. The sixth instructional activity in an 11-part series has scholars use stoichiometry to find the theoretical yield of a...
Santa Monica College
Lewis Structures and Molecular Shapes
Learners practice drawing Lewis dot structures, build molecules with model kits, and predict molecular shapes using VSEPR theory. The combination of written work and hands-on reinforcement benefits young scientists.
Santa Monica College
Flame Tests of Metal Cations
Scientists used flame tests to identify elements long before the invention of emission spectroscopy. Young chemists observe a flame test of five metal cations in the fourth lesson of an 11-part series. Individuals then work...
Santa Monica College
The Composition of Potassium Chlorate
The third lesson in a series of 11 begins by using thermal decomposition of potassium chlorate to determine the mass percent of oxygen. Then a second activity allows scholars to demonstrate that the resulting residue is from a...
Laboratory for Atmospheric and Space Physics
Orbit Simulator
Researchers think they have evidence of a new planet deep in our solar system that is the size of Neptune and orbits the sun far beyond Pluto. The orbit simulator shows the orbits of our well-known planets, as well as Pluto and the comet...
LABScI
Viscosity: The Fluid Lab
There's more to fluids than meet the eye—they include gases, liquids, and polymers, too! Scholars complete three hands-on activities exploring different properties of fluids. They explore viscosity by measuring the resistance, or...
LABScI
Conservation of Momentum: Marble Collisions
What happens to the momentum of an object when it strikes another object? Scholars roll a marble down a ramp so it collides with another marble. By measuring the speed of each marble before and after the collision, pupils answer this...
Cornell University
Constructing and Visualizing Topographic Profiles
Militaries throughout history have used topography information to plan strategies, yet many pupils today don't understand it. Scholars use Legos and a contour gauge to understand how to construct and visualize topographic profiles. This...
LABScI
Potential and Kinetic Energy: The Roller Coaster Lab
Ron Toomer, a famous roller coaster designer, suffered from motion sickness. Pupils design their own roller coasters, learning about potential and kinetic energy in the process. Labs focus on the importance of drop height, energy...
LABScI
Acoustics: The Sound Lab
If the delay between a sound and its echo is less than 1/10th of a second, the human ear can’t distinguish it. Through the use of a Slinky, rubber band guitar, and straws, scholars explore where sound comes from and how it travels....
LABScI
Circuits Lab: Lightbulbs
Electrons flow from negative to positive, but the general consensus is that current flows from positive to negative. Scholars explore current through construction of circuits in both series and parallel. The focus is on voltage,...
Laboratory for Atmospheric and Space Physics
Polar Vortex Interactive
An interactive lesson places pupils as scientists who must learn why the ozone layer is being destroyed by analyzing the data from multiple satellites. The first analysis shows how UV is related to the ozone cycle. The second...
PHET
Resistance in a Wire
Resistance is not futile, it is voltage divided by current. A creative simulation presents a wire graphic and allows participants to alter the area, length, and resistivity. As scholars increase or decrease a variable within the...
Laboratory for Atmospheric and Space Physics
Star Light, Star Bright
Star light, star bright, first star I see ... wait a minute, where did the star go? Scholars complete a simulation that measures the brightness of a distant star as another object passes in front of it. Learners move the passing...
National Wildlife Federation
Power Pellets! Nuclear Energy in the United States
Nuclear power provides about 20 percent of the energy generated in the United States. The seventh activity in the series of 12 tackles nuclear power. After sharing what they know about nuclear energy, scholars complete a...
Berkeley Lab
Virtual Frog Dissection Kit
Fluffy is one of the most common names for a pet frog. Fluffy, the digitized frog in this dissection kit, opens up quite literally to allow scholars to see what's inside. The basic kit encourages pupils to click on various organs to see...