"The Mystery of Lyle and Louise"

Soda lime glass.

Instant Readings Give The First Readout After Four Heartbeats

The nation's most exciting science competition now has kits for at-home use!

Organized, economical survey of fossils.

Use Sordaria fimicola to allow students to visualize the results of crossing over during cell division.

Demonstrate amoeba structure, locomotion, and feeding behavior.

Spirogyra is a genus of filamentous green algae with chloroplasts arranged in a helical (spiral) pattern.

Four to six adults of each sex (including virgin females) have been carefully selected for the parent generation. Larvae will be visible within a week of receipt. Please order 7-10 days in advance.

We fully guarantee the purity and viability of our Drosophila melanogaster cultures. A large, vigorous culture is shipped in a shatterproof plastic vial. To ship Drosophila cultures with living larvae we require 10 days' notice prior to use date. During very cold weather, adult flies may die but eggs and larvae usually survive. Allow cultures to come to room temperature before checking under low magnification for eggs and live larvae. Complete instructions are always included.

For lighting gas burners.

Dropping bottles are made of low-density polyethylene.

Perfect For In-Depth Study Of The Human Body

"Fireproof insulation is 100% gypsum, reinforced by a 1" by 2" lattice made of 14-gauge galvanized welded steel wire. Field replaceable steel panels can be easily replaced. Finish is an environmentally friendly, scratch-resistant electrostatic powder coating applied to all sides, including bottom. Drawer bodies are built with high sides for use with hanging folders.

A highly detailed desk model.

The nation's most exciting science competition now has kits for at-home use!

The economical and durable Dyla-Dual magnetic hotplate stirrers are ideal for general heating and stirring.

Ectoparasite