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In this activity, learners make a paper cone and use it in a window to measure the length of the shadow over the course of a day. Learners then repeat the same experiment a month later. In another...

In this activity, learners observe what happens when yeast cells are provided with a source of food (sugar). Red cabbage "juice" will serve as an indicator for the presence of carbon...

In this geology activity, learners create a model using a mixture of salt and sand inside a CD case. When the case is tilted or inverted, the mixture dramatically sorts into a layered pattern. With...

In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation. Learners compare the melting rate between chocolate left in the sunshine and chocolate...

In this geology activity learners build a "squeeze box," which allows them to compress layers of sediment. This is a great way to investigate folding and faulting in the Earth. The...

In this activity, learners visualize the differences in water density and relate this to the potential consequences of increased glacial melting. This activity can be conducted as a demonstration...

In this chemistry demonstration, acid rain is simulated in a petri dish. Sodium sulfite (NaSO3) and hydrochloric acid (HCl) are mixed to create sulfur dioxide gas (SO2), which is a common byproduct...

In this activity, learners practice the steps involved in a scientific investigation while learning why ice formations on land (not those on water) will cause a rise in sea level upon melting. This...