Glacier Ice Melting Model
Ice cubes
Water
2 Medium-sized Tubs
Clay
Pushpins
Data Collection Sheet
Green House Effect
2 Clear plastic 2-liter bottles per team of students
Plastic wrap or clear plastic bags to cover the “greenhouses”
String or rubber bands to hold the plastic in place
2 Thermometers per team
Two 2”x 2” pieces of thin cardboard
Soil
Plastic rulers
Masking tape
Utility knife or saw for cutting the plastic bottles
Clip-on light source with at least a 100-watt bulb
Dead Zone Model
Three clear 2-liter soda bottles per group
Vernier Dissolved Oxygen Sensor
Masking Tape
Plastic wrap
Rubber bands
Over-the-counter fertilizer (15-0-0) and Plant Starter Concentrate (3-10-3)
Water Cycle model
Artist's clay
Petri dishes
Clamp Lamp
Large aquarium or plastic shoeboxes with covers
Engineering Challenge
1.5 foot (.46 m) plastic tubing or PVC pipe with 1.5
inch (3.81 cm) or greater inner diameter
2 250-ml beakers
50-100 ml chlorinated water; this 200 ppm solution is
prepared by the teacher using Clorox:registered: germicidal
bleach; see instructions in the Procedure section
50-ml graduated cylinder
plastic spoon, to load sands and activated carbon
sieve, to separate small materials
lab safety gloves, one pair per student per day
lab book or notebook, one per student
safety goggles, enough so that each student in a
team can wear goggles while handling and testing
the chlorinated solution
Engineering Design Process and Water Filtration
Pre/Post-Test, two per student
Engineering Design Report Scoring Rubric, one per
student
Materials for the class:
activated carbon, either granules or pellets
filter media, such as cotton balls, fish filter media,
carbon infused filter media, 50 micron felt pad,
cheesecloth, cotton cloth or whatever is available
fine-grained sand
Clorox:registered: germicidal bleach; used to make a
chlorinated water solution; 2 teaspoons bleach per
gallon of water
pitcher or other container large enough to hold a
gallon of water, for preparing the chlorinated water
"free" and total low-level chlorine water quality test
strips, such as Hach's "Free & Total Chlorine Test
Strips, 0-10 mg/l," 50 strips, 0-10 ppm,
sanitizer-strength chlorine test strips, such as
LaMotte's "Cole-Parmer at
stopwatch