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Earth and Human Activity

How much Carbon Dioxide do you Produce?

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Submitted by Danny on Fri, 07/05/2019 - 00:59

It is almost instinctive when you first get the PocketLab Air to breathe directly on it just to see what happens. As seen below, of the PocketLab Air's seven sensors five of them detect changes from a direct human breath. These parameters are carbon dioxide, particulate matter, temperature, humidity, and pressure. The most interesting of these is the sharp rise in carbon dioxide which as the most important greenhouse gas brings about strong connections to the topic of climate change.

Sensors for Forest Fires

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Submitted by Danny on Wed, 06/05/2019 - 19:41

Forest fires are a common natural disaster within western North America and pose a serious risk to many communities both nearby due to direct danger of the fire, as well as far away in the form of air pollution. Currently, in many places, some form of government employee will be in charge of looking out for forest fires and once identified, satellites and computer programs can be used to track its progression and predict where the fire will spread and where the smoke cloud will go. This allows us to evacuate individuals who may be in danger and minimize loss of life.

PocketLab Air: Measuring Ozone

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Submitted by PocketLab on Mon, 05/06/2019 - 18:21

Background Information about Ozone

Ozone (O3) in our atmosphere is both good and bad. There is a helpful saying to remember is, “Ozone: good up high, bad nearby.” The “good” ozone is ozone high in our atmosphere that is part of the ozone layer. The ozone layer protects us from the sun’s ultraviolet rays. “Bad” ozone is ozone that occurs at ground level, where it can be inhaled. Ground level ozone is a pollutant and creates smog. 

PocketLab Air: Measuring Particulate Matter

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Submitted by PocketLab on Mon, 05/06/2019 - 17:41

Background Information on Particulate Matter

Particulate matter consists of small particles suspended in the atmosphere. Dust, pollen, sea salt, soil particles, mold, soot, smoke, and other fine substances create a mixture of particulate matter that we inhale with every breath. According to the EPA, particulate matter greater than 10 micrometers is generally filtered away in our nose and throat. Particulates less than 10 micrometers can often pass into the lungs.

PocketLab Air: Measuring Carbon Dioxide

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Submitted by PocketLab on Mon, 05/06/2019 - 17:13

Background Information

Carbon dioxide circulates naturally in Earth’s atmosphere as part of the carbon cycle (the process in which carbon dioxide is exchanged between the atmosphere, oceans, soil, plants, and animals). According to the EPA, since the industrial revolution, humans have altered the carbon cycle through activities like burning fossil fuels, which adds CO2 to the cycle, and deforestation which reduces natural ways in which CO2 is removed. 

Air Quality Lesson Plans

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Submitted by DaveBakker on Fri, 05/03/2019 - 21:44

Free Air Quality Lesson Plans

Bring the science of air quality into your classroom through hands-on activities, inquiry-based lessons and real science tools. These high quality lessons plans are free to download and were developed by King's University in conjunction with Telus World of Science in Edmonton.

Subject

A Lesson in Radioactivity and Half-Life: Voyager/Scratch Geiger Counter Simulation

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Submitted by Rich on Tue, 02/20/2018 - 21:10

This lesson makes it possible for your students to study radioactive decay and half-life concepts without the need to purchase expensive radiation monitors and actual radioactive isotopes.  Scratch and Voyager work together to accomplish this via a simulation that matches that of true radioactive decay.  ScratchX is not required, but may be used.  The Scratch program provides the decay process.  With each decay of a simulated atom, the Scratch screen quickly flashes white and emits a beep sound similar to that of a typical Geiger counter.  Voyager’s light sensor records each of the decays a

Is Global Warming FAKE NEWS? Creating a Bottle Ecosystem

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Submitted by DaveBakker on Tue, 07/25/2017 - 22:56

Can you devise an experiment to see whether increased CO2 (carbon dioxide) in the atmosphere contributes to warming? We found a teacher who tweeted exactly what you need! @MontessoriMicky  shared with us his lesson plan on a Bottle Ecosystem and had his class run an experiment using PocketLab to measure the heat absorption of a glass bottle filled with CO2 vs normal air as a control.

Grade Level

Saving Energy with Curtains

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Submitted by PocketLab on Fri, 06/02/2017 - 18:04

Exploration

Does closing blinds or curtains save energy? Often the blinds or curtains in a room are left open when it is cold outside, even when no one is using the room. Would closing them save energy?

Objective

In this experiment, students will:
1. Determine how to use curtains to save energy when it is cold outside.

Download PDF for complete lab activity