Go Direct® CO2Gas Sensor

Measuring CO2 in Air

Atmosphere and Constituents of Air

Measure CO2 levels in ambient air and exhaled air — directly teaches CO2 as constituent of air

CO2 in Exhaled Air Measurement

Importance of Oxygen

Measure CO2 increase in exhaled air — directly proves exhaled air has more CO2 (textbook experiment Fig 5.14)

Measuring CO2 Uptake During Photosynthesis

The Leaf

Measure CO2 decrease around a leaf in light — directly demonstrates photosynthesis (leaf function from textbook)

CO2 Production During Germination

The Flower

Measure CO2 released by germinating seeds — demonstrates that seeds respire during germination

CO2 in Exhaled Air

Respiratory System

Measure CO2 levels in exhaled vs inhaled air — directly proves respiration produces CO2 (textbook concept)