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SMD Forum - Primary:
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Instructional Strategies:
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Materials Cost:
$1 - $5  
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Designed as either a demonstration or an investigation for use in a formal or informal setting, this activity focuses on the effects of water density on water's movement. A list of materials, along with the instructions for building the apparatus... (View More)

In this activity, students use mathematics to understand tides and gravitation and how gravity works across astronomical distances, using an apparatus made from a slinky, meter stick, and a hook. A description of the mathematical relationships seen... (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)

This experimental activity is designed to develop a basic understanding of the interrelationship between temperature and pressure and the structure of a device made to examine this relationship. Resources needed to conduct this activity include two... (View More)

In this demonstration, students detect the interference of waves and measure wave phenomena using an experimental apparatus consisting of a laser pointer, a second surface mirror scrap (like a bathroom mirror) binder clips, razor blade, ruler, and a... (View More)

Audience: Middle school
Materials Cost: $1 - $5 per group of students

In this demonstration, the process of cooling by evaporation is related to the serious health risk of hypothermia. Materials required include a desk fan, thermometer with exposed bulb, cotton or gauze, bowl, and material including cotton and wool.... (View More)

This hands-on activity demonstrates how the combining two fluids (confluence of two rivers, Mediterranean water spilling over the straits of Gibraltar into the Atlantic) involves two processes: (1) stirring - stretching of the bulk fluid, and (2)... (View More)

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