Page 19 - Demo

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EARTH SYSTEMS: STRUCTURE
& POPULATION
CANT FIND
Sampling Squares
Students can now easily quantify the types of organisms in their classroom’s field study! This lightweight, portable sampling square is quick to set up and use. A durable bungee cord runs through the pipes of the sampling square to allow the square to literally pop together. Simply place the 0.25 m2 square on the loca- tion to be studied and count the number of organisms within that square.
AP6833 I Individual I $27.85 AP6834 I Set of 8 I $193.10
, continued
Frog Pond Population—
Estimating Populations—
Super Value Game
Super Value Kit
This card game simulates a frog population
of a local pond under both natural- and human-influenced situations. Students will see first hand how quickly a frog population can be affected by various factors. The cycles of the frog population are modeled, graphed and further researched. Includes enough materials for five groups of students.
AP7257 I $55.80
Explore the mark/recapture method of count- ing a population. First, they capture individuals in their simulated population and “tag” them. Then the organisms are released back into
the population. After multiple trials, students predict the population size. Lastly, they count the actual population and determine the reli- ability of the mark/recapture method. FB1439 I $57.25
Height Gauge, Tangent
A simple device for measuring the height
of any object. The user sights the top of the object being measured through the two circu- lar sighting rings and alters her position until the level bubble is centered. The distance from the user to the base of the object plus the distance from the ground to the user’s eye level is the height of the object. The gauge is constructed of durable ABS plastic.
FB0433 I $30.60
Survival Island—Super Value Kit
Visit
This game-like simulation is designed to mimic the real Easter Island story—the catastrophic story of a small island off the coast of Chile. Survival Island has a finite area and resources. Once inhab- ited, the island population grows rapidly and decisions about resource use become critical for survival. Students end the simulation by considering resource use on Earth Island.
FB1577 I $42.45
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EARTH SYSTEMS I FLINN SCIENTIFIC 19