Pacon Gray 12" x 18" Construction Paper, 50 Sheets (8807) BEFORE POWERING ON

BEFORE POWERING ON

Sensor uses an exclusive photo diode and multicolor correction filter

Your students will- Understand the sources of bacterial contamination in water Collect water samples and inoculate agar plates Identify and count bacterial colonies Observe bacterial smears under the microscope Learn the effects of bacterial contamination of water on human health and ways to minimize the risk of contamination

Features two strong alligator clips with adjustable angle and height

Includes 100 feet of each color: red

Pacon Gray 12" x 18" Construction Paper, 50 Sheets (8807) BEFORE POWERING ONSize: 12" x 18" Color: Gray Sheets per pack: 50 Brightly colored, high strength, heavyweight construction paper with long, strong fibers that cut clean and fold evenly without cracking. All purpose, high bulk, smooth textured. Made with a chemical free pulping process to help ensure a cleaner environment.