# Explore Teaching Examples

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Igneous Rocks Model part of Interactive Lecture Demonstrations:Examples

While working in groups to facilitate peer tutoring, students use samples of four igneous rocks (gabbro, basalt, granite, and rhyolite) to observe differences in texture, color and grain size and make inferences ...

Magma Viscosity Demos part of Interactive Lectures:Examples

This is an interactive lecture where students answer questions about demonstrations shown in several movie files. They learn to connect what they have learned about molecules, phases of matter, silicate crystal ...

Using Popcorn to Simulate Radioactive Decay part of Quantitative Skills:Activity Collection

Popping popcorn in your class is an excellent way to illustrate both the spontaneity and irreversible change associated with radioactive decay. It helps students to understand the unpredictability of decay.

M&M Model for Radioactive Decay part of Quantitative Skills:Activity Collection

A tasty in-class demonstration of radioactive decay using two colors of M&M's. Illustrates the quantitative concepts of probability and exponential decay. This activity is appropriate for small classes (<40 students).

Exploring Radiometric Dating with Dice part of Quantitative Skills:Activity Collection

An activity in which students use dice to explore radioactive decay and dating and make simple calculations.

Crystallization from Melt Demonstration part of Interactive Lecture Demonstrations:Examples

This demonstration uses melted phenyl salicylate to show how crystals nucleate and grow as the temperature of the liquid melt decreases. -

Water Contamination Demonstration part of Interactive Lecture Demonstrations:Examples

Summary: Misplaced Matter and Water Pollution The drinking water pollution demonstration provides a very simple but dramatic way to get students to think about water contamination and drinking water standards, ...

Adhesion, Cohesion, and Surface Tension Demonstration part of Interactive Lecture Demonstrations:Examples

This short (<5-10 minutes) pair of demonstrations uses glass slides with a very thin film of water to demonstrate the cohesive and adhesive forces of water molecules, and a needle floating on water to ...

Presenting the Geologic Timescale part of Interactive Lecture Demonstrations:Examples

This project has students model the geologic timescale using distance as a metaphor for time. Students give presentions spaced at distances which represent how far apart in time the events occurred. -

Pressure Melting of Ice: While-U-Wait part of Interactive Lecture Demonstrations:Examples

In this demonstration, students get to witness pressure melting and regelation first-hand. A weight is suspended via a thin wire over an ice cube. Over the course of the course of the demonstration, the wire ...