"Avantor"

Unlike traditional pendulums, the Kater's pendulum center of gravity does not have to be know in order to determine the acceleration due to gravity.

Illustrated dissection guide.

Illustrated dissection guide.

Demonstrate photosynthesis and respiration in action with our ready-made algae beads.

Small fossil shrimp.

Beautiful deep green, prismatic, crystalline spray.

Nearly complete in matrix.

Small individual ammonite classically preserved in the black matrix of the famous Holzmaden quarry.

Polished banded slices with colorful translucence.

A rare complete skeleton and shell replica of this 130 million year old fossil turtle, a distant relative of the modern-day snapping turtle.

Measure photosynthesis and respiration using algae beads.

Formalin preserved turtles available in pails.

Formaldehyde-free preserved fetal pigs.

These packs feature representative fossils from the phanerozoic eon.