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Middle school  
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Now showing results 31-40 of 121

This activity, effective outdoors or indoors, demonstrates how insolation is affected by latitude by using a pair of thermometers, each taped to some cardboard, placed outside on a sunny day. A globe can also be used, outdoors or indoors. Students... (View More)

In this lesson, learners will construct their own 3-D glasses in order to use them on 3-D images, such as images of the Sun from the STEREO spacecraft. This activity requires special materials, such as red and blue acetate paper and can be used with... (View More)

In this lesson, students are introduced to the electromagnetic spectrum. They observe a demonstration of the visible light spectrum created by a flashlight and a prism, complete an activity sheet where they identify the wavelength that is involved... (View More)

In this lesson, students determine whether an object reflects or absorbs red, green or blue light, and create a simple spectral signature. Student worksheets and an answer key are included. This is Lesson 2 in Understanding Light, part of IMAGERS,... (View More)

In this lesson, students explore the visible light spectrum using a flashlight and red, blue and green theatrical gels or cellophane. They also record data on a worksheet, and learn about mixing wavelengths of light. A student worksheet, data sheet,... (View More)

This educational wallsheet illustrates Newton's Third Law of Motion. The accompanying activity is an experiment in which students create a balloon and straw rocket. Students must figure out how to shoot the balloon from the back of the classroom and... (View More)

This is a series of hands-on activities comprised of fieldwork and lab work about the basics of soil science. Learners record soil context descriptions, measure soil moisture, describe soil color, structure, consistency, and texture and conduct... (View More)

This is a hands-on lab activity about seawater density, specifically the relationship between density of fluid, weight of an object, and buoyancy. Learners will develop hypotheses and observe a demonstration of density to understand its role in... (View More)

These two hands-on labs are about the role of temperature and salinity in governing the density of seawater, a major factor controlling the ocean's vertical movements and layered circulation. In the first activity students work in groups to... (View More)

This activity has two purposes: challenge the learner to develop a procedure for investigating a research question and to learn more about factors affecting the dynamics of air in motion. It demonstrates that warm air and cold air differ in weight... (View More)