"SILICO & chemical PORCELAIN SE"

Conifers come in all shapes and sizes — and so do their cones.
Includes: 6 pine cones, 6 spruce cones and 6 cedar cones.
*Pine cone factoid: Pine cones can forecast the weather! In dry weather, the scales dry up and open out. If they start to close up, wet weather is coming!

For Culture of Freshwater Algae. Comes in ready-to-use and concentrated formulations

Which environment is more appealing?

These common worms are also referred to as Red Wigglers.

Wax worms are a hardy larvae that are easy to handle.

Planorbids, mixed genera. Compare these attractive, spiral-shelled, herbivorous freshwater specimens with other snails. They will eat aquarium plants

Crayfish are a mixture of Orconectes immunis and Orconectes virilis.

Carassius auratus

Poecilia reticulata.

This set of 12 cultures can be studied as hands-on examples of the bacteria described in the most popular high school-level biology texts.

An excellent aquarium oxygenator, great for teaching respiration, photosynthesis, and plasmolysis.

Drosophila melanogaster, the common fruit fly, is widely used in genetic studies. They express a number of mutations such as eye, wing, and body mutations.

An excellent aquarium oxygenator, Elodea canadensis is great for teaching photosynthesis and plasmolysis.

Create a balanced ecosystem in your aquarium with the addition of these small, freshwater algae eaters. They reproduce rapidly, laying their eggs on the glass sides of the aquarium.

Bullfrog tadpoles are great for demonstrating metamorphosis in the classroom.

Two strains of Escherichia coli (donor and host) with complementary sensitivities to Ampicillin and Streptomycin. Watch them trade traits via conjugation.