Gravitational Interactions

Sure, you may be able to build a better mousetrap, but what about a gum dispenser? In a fun engineering challenge, teams must design and build a working interactive gumball machine with specific constraints and criteria.

The propellant needed for space explorations runs in the thousands, while paying to get the craft into orbit costs millions! In the second installment of three, two activities explore laws of conservation of energy and momentum. Using...

Bring some energy to your physical science curriculum with this engaging Bill Nye the Science Guy lesson. Based on his Renewable Energy video, students explore the concepts of potential and kinetic energy and learn how they are applied...

Low tides, high tides, spring tides, neap tides, diurnal tides, semidiurnal tides, mixed tides ... just how many types of tides are there? The 10th installment of a 23-part NOAA Enrichment in Marine sciences and Oceanography (NEMO)...

Do you think the lab smells like rotten eggs? Sorry to hear about your sulfering. A set of five experiments covers many different topics including seasons, gravity, food, precipitation, and photosynthesis. Though not presented as a...

Attracted class members to an activity-packed journey through the science behind the invisible forces at work all around us. From jump rope generators to junkyard wars, there's never a dull moment when eighth grade physics scholars...

In 2006, about 20 percent of the world's electricity was generated from hydroelectric power. In the presentation, scholars review the water cycle and gravitational energy to begin to understand how humans harness the power of water. They...

An amazing information-packed lesson plan allows your space scientists to crash a virtual comet into Jupiter and learn how the angle, distance, speed, and mass influence the outcome. Click on "Back to the Lesson" to access the...

Scientists state that the higher something is above the earth, the greater the gravitational potential energy. Does this mean there is more gravity acting on the moon than on an apple falling from a tree? Scholars adjust the distance...

Have you ever wanted to turn off gravity? This simulation allows learners to do just that in addition to altering other variables. Scholars can move the sun, Earth, moon, and space station to see how distance affects gravitational pull....