Students explore musical pitch. In this cross curriculum musical instruments and "sound" physics lesson, students identify and describe common traits of woodwind instruments. Students research "pitch" and what causes pitch fluctuation by...

Your youngsters become cheetahs in search of food, water, shelter, and space in a fun physical game that does a fantastic job of representing fluctuating species population based on resources available over years. 

Young scholars carry out an experiment to monitor diurnal fluctuations in dissolved oxygen, carbon dioxide, pH, and water temperature. They determine the CO2 and pH of the samples (and optionally, dissolved oxygen). Students complete...

Students analyze the global temperature record from 1867 to the present. Long-term trends and shorter-term fluctuations are both evaluated. The data is examined for evidence of the impact of natural and anthropogenic climate forcing...

How does hydrogen bonding explain ice crystals? An engaging interactive answers just that. Scholars explore how polar molecules interact and observe the changes as temperature fluctuates as well as the hydrogen bond attraction.

What did Earth look like 4.5 billion years ago, and what was the climate like then? Scholars explore a view of Earth throughout history. They observe continents moving, temperatures fluctuating, and huge changes in ecosystems. A...

Scientists use data to learn about species survival—and your classes can too! A set of four lessons guides learners through a process to draw conclusions about the fluctuations in the population of the Hellbender species. They read...

Even rivers have tides. Older elementary schoolers will discuss the Hudson River and how weather, water craft, and the ocean cause tidal fluctuation. They will examine a series of line graphs that depict tidal fluctuation, then analyze...

Students design a closed system to test the relationships between plants and animals. They monitor abiotic fluctuations within this living system by using a chemical test kit. They observe how living organisms respond to fluctuations in...

Students use the GLOBE Website to locate and study environmental data. They use the GLOBE Graphing Tool to display data. Students describe the role of solar energy in the annual fluctuations of soil moisture. They describe reservoirs and...

Young scholars simulate the impact of fluctuating river volumes on structures and landforms. They experiment with table top-sized riverbed models and water. Students consider how human design can help mitigate the effects of a flood.

Young scholars determine if different temperatures effect the growth and survival rates of aquatic plants and evaluate the optimal temperature for the growth of aquatic plants.

Students examine natural climate fluctuations of the Earth and compare climate change in last 100 years to earlier climate changes. From this data students will begin to define current issues related to global warming.

Young scholars brainstorm possible causes of zebra mussel migration and population expansion. They identify the key causes and effects of the disturbance of the Hudson River ecosystem and research causes and effects in the disturbances...

What effect does temperature have on the volume of a gas? Observe the temperature-volume relationship through an animated simulation. The user controls the temperature, and a moveable piston reacts to increased or decreased thermal...

Turn up the heat! What happens to the pressure in a closed system as temperature changes? Enhance your chemistry class' understanding of the gas laws with an illustrative interactive. Pupils change the Kelvin temperature before observing...

Learners simulate the changes in a natural population of birds or other species. They establish baseline data of population fluctuation for a closed population with a stable food supply. They graph the data to complete their mutations.

Students are led through three activities to explore the effect of temperature fluctuations on the growth and survival of aquatic plants, clams, and shrimp eggs.

Students investigate the concept of temperature and how it has the tendency to fluctuate. They record the temperature as a class on a daily basis for a long period of time. The data is charted and then at a designated time students...

Small groups learn about a present-day nomadic culture in Mongolia and the threats to its existence by exploring a photo essay. The resource includes thoughtful discussion and writing prompts about cultural sustainability, the...

High schoolers conduct a series of experiments to investigate density, buoyancy and climate. In this math lesson, pupils design and build a hot air balloon to demonstrate convection. They research and write a paper about solar chimneys.

Halting the depletion of the hole in the ozone layer has been one of humanity's happy recoveries from previous damage done to the environment. Meteorology masters muse the Montreal Protocol and examine data on changes in the ozone....

How do we predict future population growth? Young researchers investigate various factors affecting the size of our population. As they calculate and interpret graphs to determine factors that could potentially affect increases...