Earth & Environmental Sciences Blog

Back to school? Recharge and Update your wireless sensors!

July 17, 2017

Don't miss out on free software and firmware updates.

PASCO Wireless Sensors often gain additional value over time with new functionality and increased performance. These benefits are ... Read More

Angling for More Solar Power

March 21, 2017

Have your students ever wondered why solar panels on a row of houses all face the same direction? If you approach the topic from the right angle with the right stuff you can easily create a hands-on investigation. That’s right, no waiting, ... Read More

The Reason for Seasons

December 13, 2016

Trees are shedding their leaves and the days are getting shorter (in the northern hemisphere), so it’s the perfect time for students explore the reason for the seasons. Students often have the misconception that the distance from the sun is ... Read More

A Watershed Moment

October 3, 2016

Watersheds are an important natural feature. Whether they realize it or not, most people live near a watershed. In this activity, students can build a model watershed and observe the impact of upstream ... Read More

Introduction to GPS-eometry

April 21, 2016

With the advent of GPS, folded maps have become obsolete. With that advancement, unfortunately, students are less likely to understand the significance of latitude and longitude. But with geo-tagging becoming increasingly popular, helping students ... Read More

Transpiration with a Potometer

April 15, 2016

Transpiration is an important concept in both biology and environmental science, especially in terms of role it plays in the water cycle. As water evaporates from the stoma of leaves water is pulled up (due to hydrogen bonding) through the xylem ... Read More

pH Imbalance - Getting to the Root of the Problem

March 8, 2016

Science is more meaningful and engaging when students have the opportunity to explore the world around them. And it is more meaningful still when students are empowered with the tools to collect and analyze data just like real scientists do, ... Read More

Watershed Studies: Oh-no! Where's my DO?

November 20, 2015

Earth disturbances are fairly common in areas with construction or mining, but what exactly is the impact of this type of disturbance? And how can you show your students about the chemical changes that are taking place and the resulting impact on ... Read More

From Russia with Science!

September 23, 2015

Every winter many parts of the world are covered with snow, and when that snow melts off, you see bits of green start to appear. But how does non-point source pollution impact the growth of some of that greenery? Mr. Aleksey Vasilevich, a teacher at ... Read More

The Solar Spectrum

September 23, 2015

One great way to kick off the school year is with some fun and creative lessons that make students think about the science that’s all around them. And why not take advantage of the weather and conduct an outdoor lab? One of my favorite ... Read More

Measuring Our Way Through the Streets of Philadelphia

July 6, 2015

What better way to spend the days leading up to the U.S. Independence Day than to do some data-logging throughout the city where our government was born? As host of the 2015 International Society for Technology in Education (ISTE) conference, ... Read More

Earth Day and Water Conservation

April 22, 2015

California is in the grips of a major drought, as 2015 is on track to be driest year since record-keeping began in 1895! The drought has brought water conservation and water quality issues to the forefront of many Californians' daily lives, as ... Read More

Modeling Biological Oxygen Demand

March 25, 2015

Biological oxygen demand (BOD) relates to the change in oxygen that occurs in bodies of water as a result of microorganisms taking in and using dissolved oxygen as they decompose organic matter. These decomposers utilize oxygen in the same way that ... Read More

Sunlight Intensity and the Albedo Effect

February 13, 2015

In the environment, light intensity and temperature are related. However, due to the reflective properties of different surfaces on the Earth (called the albedo effect), the degree that light intensity and temperature are related varies. ... Read More

Water quality sampling on the Sarapiquí River in Costa Rica

November 18, 2013

Science educators from the U.S. recently traveled to Sarapiquí, Costa Rica, for a professional development seminar to learn how to lead students on educational travel programs abroad and translate those experiences back to the classroom. As ... Read More

Long Term Weather Monitoring

November 18, 2013

One great way to put data collection equipment to use during breaks or between labs is to conduct long term environmental monitoring. Students can analyze the data to address a variety of topics such as weather, microclimates, air/water quality, and ... Read More

Visualizing Data in Google Earth

October 17, 2013

It’s easy to geo-tag data in the field using the GPS Sensor. We already covered bringing data ... Read More

Dissolved Oxygen Inquiry

September 16, 2013

Dissolved Oxygen (DO) is simply oxygen gas (O2) dissolved in water, but it’s one of the best indicators of a healthy aquatic ecosystem. For most freshwater environments, a DO concentration of 5–10 mg/L (or ppm) is needed to ... Read More

Tracking Weather

August 27, 2013

Help your students understand weather, fronts, and air masses with a Weather/Anemometer Sensor. This MultiMeasure™ sensor collects nearly all relevant data ... Read More

Visualize GPS Data with ArcGIS Online

August 19, 2013

Whether you're collecting water quality, weather, or species distribution data, there are often patterns that are only visible in a geographic context. Geographic Information System (GIS) software can help students visual data spatially but is often ... Read More

Back-to-School Probe Prep

August 19, 2013

Most PASCO sensors and interfaces don't require any maintenance, but for continued accurate measurements, we recommend a little tune-up for some sensors at the beginning of the school year. Here are 10 tips to make sure your equipment is in optimal ... Read More