Featured in PASCO’s College Environmental Science Instructor Guide
College Instructor edition with experiments covering introductory and general environmental science topics.
Model an Ecosystem
Use a variety of sensors to explore the use of terrariums as a closed system for environmental studies, designing ways to explore the interrelationships of biotic and abiotic structures in ecosystems.
To use terrariums as a closed system to design and sustain a stable ecosystem, students:
- Configure multiple, interconnected terrariums in which they design and conduct investigations of the interrelationships of biotic and abiotic structures in ecosystems.
- Learn to use this closed system to change one variable at a time, control other variables, and monitor multiple variables simultaneously.
Sample Lab - Modeling an Ecosystem (769 KB – PDF)
Students design, execute, and analyze controlled investigations using sensor technology to monitor independent and dependent experimental variables.
Sensors / Equipment Used:
The Oxygen Gas Sensor accurately measures O2 concentration in the atmosphere or in enclosed spaces. Study animal, plant or cellular respiration, air quality, O2 production from chemical reactions and more.
The PASPORT Carbon Dioxide Gas Sensor measures carbon dioxide concentration CO2 (parts per million) in gases such as air. Ideal for studies of photosynthesis, respiration, fermentation and more.
Measures barometric pressure, relative altitude, absolute and relative humidity, dew point, and temperature. For use with PASPORT Interfaces.
Our PASPORT Colorimeter records all 4 wavelengths simultaneously--no need to guess at wavelength to get a quality measurement.
System contains 3 interconnectable acrylic chambers for building your own ecosystems. Designed to easily integrate sensors for quantitative environmental measurements
Compost or soil (quantity
determined by student design of
Different types of living organisms - Several
Plant seeds or seedlings, or moss - Several
Pollution sources (depends on students’ design):
Detergent (10 mL liquid soap)
Fertilizer (10 g)
HCl or white vinegar (16.6 mL
Strong incandescent or fullspectrum fluorescent light source
USB hub (depending on data collection system)
Water, dechlorinated (quantity determined by student design of the activity)
The Associated Bundle:
Contains the probeware needed to perform all 26 experiments in the College Environmental Science instructor guide.