BOTANY

Numerous programs covering the world of
botany from the microscopic algae to the
tallest redwood and oldest bristlecone.End-
less fascinating information for the scientist
& amature. GREATLY REDUCED PRICES!

PHOTOSYNTHESIS & PLANT CELLS
A simple explanation of photosynthesis for the non-chemistry student and a des- cription of plant cells and how they func- tion. 2 pgms. 35 slides, detailed texts.
EPSS-0045X SLIDES
$59.95

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SAVE OVER $25.00 ON 2 SLIDE SET BUNDLE ORDER EP #SS-0045X........$59.95
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PHOTOSYNTHESIS Slides order #SS-0045S .........$42.50

Details light and dark reactions, the two separate processes of photosynthesis.
To promote understanding by non-chemistry students, this program uses a minimum of
chemical formulas and equations without losing the essence of the biological processes.
15 frames, cassette, guide. (Filmstrip order SS 0045F .......$15.00.)

CONTENT SAMPLE: 2. Photosynthesis can be technically defined as the manufacture
of food, mainly sugar from carbon dioxide and water in the presence of chlorophyll and light
energy, and releasing oxygen gas. This process of photosynthesis has undergone intensive
research for many years but even today with our sophisticated level of scientific insight, there are
still many steps that remain mysteries.

Around 350 B.C., Aristotle had concluded, and it was widely accepted, that green plants
obtained their nourishment from the soil. Not until the 1600’s was this idea successfully
challenged by a man named Van Helmont. Van Helmont grew a small willow tree in a pot for five
years, adding only water to the pot. At the end of five years the earth had decreased in weight by
only two ounces while the willow had increased in weight by 164 pounds. Van Helmont’s
experiment proved that the water, and not the soil, was the major contributor to the plant’s growth.
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THE PLANT CELL Slides order #SS-0965S........$42.50

The cell is the basic functional unit for maintenance and growth of all living
systems. This program presents a functional approach through the study of a typical
plant cell, utilizing a unique combination of electron micrographs, artwork and live
photography. 2O frames and guide. (Filmstrip order #SS-0965F .....................$15.00.)

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BOTANY TERM TUTOR Order #C-3080P .......................$39.95

Concepts from our BOTANY programs!

A NEW low cost utility to teach fundamentals while entertaining students!
Popular word game formats eliminate boring vocabulary drills. This software is
versatile, yet easy to use and incorporates readily into any teacher's curriculum, drawing
on a HUGE glossary or your own custom word lists!

WORD SCAN is a unique, interactive vocabulary-builder that anyone can play,
solo or as a team, to motivate students and enhance memory skills. WORD FIND
produces an infinite number of word search puzzles. Program prints key and puzzle in
single sets or as many as you like. Because you can customize, programs appeal to all
ages and interests. Makes a great substitute for pop quizzes. An enormous time saver!
Comes with two backups. IBM PC DOS only. (Order C-3080M for 5.25 disk.)
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photosynthesis.tif Photosynthesis reaction. graphic by Educational Images Ltd.

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