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In this activity, learners make scale models of the Sun and Earth out of paper mache. Using the models, learners will go outside to explore the real distance between the Sun and Earth using the...

Water on Earth is in lakes, the ocean, rivers, underground, and frozen glaciers. In this activity, learners will model how much water of each type is found around the globe to help visualize the...

Many people get water from a source deep underground, called groundwater. In this activity learners will make a model to explore this hidden water, and see how it connects to the other bodies of...

Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others? In this activity, learners will make a model landscape using a plastic bin...

En esta actividad, Mateo y Cientina enseñan a usar modelos para ver las causas de las fases lunares. Usando un foco de lámpara, una naranja y sus cabezas para representar el sol, la luna y la...

In this activity, learners use candy pieces and a cookie to make an accurate model of the Sun they can eat. Parts of the delicious model include solar granules, sunspots, and solar prominences....

Rocks are made of minerals, and minerals often have crystal shapes. In this fun activity about geometry in nature, learners create their own crystal shapes out of paper. What does a tetrahedron...

Some bugs can walk on the surface of a lake, stream, river, pond or ocean. In this activity, learners will investigate surface tension of and how it prevents these bugs from sinking under the water...