Students gain a basic understanding of the properties of media soil, sand, compost, gravel and how these materials affect the movement of water (infiltration/percolation) into and below the surface of the ground. They learn about permeability, porosity, particle size, surface area, capillary action, storage capacity and field capacity, and how the characteristics of the materials that compose the media layer ultimately affect the recharging of groundwater tables. They test each type of material, determining storage capacity, field capacity and infiltration rates, seeing the effect of media size on infiltration rate and storage. Then teams apply the testing results to the design their own material mixes that best meet the design requirements. To conclude, they talk about how engineers apply what students learned in the activity about the infiltration rates of different soil materials to the design of stormwater management systems.

In this activity, learners build a simple mechanism that regulates the "escape" of energy released by a falling weight by portioning it into discrete amounts. Escapements are found in mechanical clocks, such as those driven by a pendulum or a spring. Learners will build the wrapping form of escapement said to be used in a fifteenth-century German clock.

Instructions are provided for making a solar oven, followed by directions for using the oven to make s'mores. A side column discusses the practicality of using solar ovens in places like western Africa. The Climate Kids website is a NASA education resource featuring articles, videos, images and games focused on the science of climate change.

Following a brief introduction to tidal energy, this article discusses the use of tidal generators to convert that energy into electricity. The article also features a description and images of the Invergordon, Scotland tidal energy generator. This lesson is part of the Climate Kids website, a NASA education resource featuring articles, videos, images and games focused on the science of climate change.

Communicate Boundaries and Practice Consent: Setting and respecting boundaries of all types – physical, digital, emotional – are central to a healthy relationship. Practicing affirmative consent is one form of establishing boundaries that requires being a respectful “asker” and “receiver.”

This lesson explores the swine industry:  locating major physical characteristics, describing common breeds, selection of superior animals, and contrasting production systems and marketing methods of swine and hogs.  Adapted from New Mexico Animal, Plant, and Science Lesson Plan Library.

Join a group of middle-school students on a visit to a laboratory at the Massachusetts Institute of Technology, where they experiment with "mystery mud" and learn about the relationships between magnetism, particle motion, and changes in the state of matter.

Explore how heat transfers from the outside to the inside of a home through a thermal bridge. The boundary that separates the inside from the outside of a home is called the thermal boundary and includes all sections of the house that are insulated. Garages and attics are often outside the thermal boundary as they are not insulated, unlike the main housing quarters. However, a thermal boundary may also include thermal bridges that enable heat transfer, specifically conduction, between the inside and outside of a home. Conduction is a specific form of heat transfer where heat moves between two objects when they are physically touching.

This is an exploratory activity involving matter and density. There are many assessment pieces including a laboratory.

In this activity, students are introduced to impact processes in a study of Meteor Crater in northern Arizona. They are guided in the use of a set of relatively simple formulas from physics to estimate the energy of impact and the size of the impactor that formed the crater.

Click here to view the full activity on the KÃyah Math Project website.

(Note: this resource was added to OER Commons as part of a batch upload of over 2,200 records. If you notice an issue with the quality of the metadata, please let us know by using the 'report' button and we will flag it for consideration.)

The formation of images by plane and spherical mirrors will be studied by examining paintings done by several masters which include images formed in mirrors.

Gravitation introductory activity with interesting animation. The activity allows the student to revile the connection between the initial speed and the shape of satellite orbit.

A worked example finding the change in the period from the change in angular velocity, and an example finding the change in frequency from the change in angular velocity.

Deriving formula for centripetal acceleration in terms of angular velocity. using linear speed formula.

David explains wave interference and solves a few examples to find the value of the total wave when two wave pulses overlap. Created by David SantoPietro.

In this lab-based activity the students will use their knowledge about the law of conservation of energy to explain the loss of heat by warm water to cold water. Then, the students will use these concepts to design and carry an experiment to determine the unknown temperature of a hot water sample.

This activity is a field lab where students use a half gallon milk/juice carton containing two raw eggs and "other" materials to design an internal protective structure that will prevent the eggs from breaking from a 50 foot drop off a roof top.

By using the discrepant event of dropping a burning candle in a jar, students will predict, experiment, and discuss why the candle goes out as soon as it is caught.

This activity is an investigation of what colors make up white light. Students will explore through two different hands-on activities.

This activity is an indoor lab for use with Vernier gas pressure sensors that allows students to experimentally determine the molar volume of a gas and ideal gas constant.