Edible frog

This animation demonstrates the anatomy of amphibians through the example of a common species of frogs.

Port

Ports must provide necessary infrastructure and services for industry and marine transportation.

Common earthworm

The anatomy of annelids is demonstrated through the example of the common earthworm.

Freshwater pearl mussel

A species of mollusk widespread in freshwaters.

Jellyfish

Jellyfish are free-swimming marine animals, a species of Cnidaria, the most ancient group of Eumetazoans.

Sponge

The most ancient group of animals, they live underwater, lack real tissues and body symmetry.

Amoeba proteus

Widespread heterotrophic unicellular organisms with constantly changing shapes

Male reproductive system

The reproductive system consists of organs which work together for the purpose of reproduction.

The evolution of data storage

The capacity of data storage devices have increased at an incredible rate during the past decades.

Water turbine, generator

Water turbines convert the kinetic energy of water into electric current.

Hot air balloon

A hot air balloon is a balloon aircraft which is lifted by hot air.

Location of origin of livestock and crops

Domesticated animals and crops originate from various parts of the world.

Monsoon wind system

In summer, monsoon winds bring heavy rainfall from the ocean to the continent.

Oxygen cycle

The oxygen cycle describes the movement of oxygen within its three main reservoirs.

Female reproductive system (intermediate)

The reproductive system is a series of organs working together for the purpose of reproduction.

Dice

Regular dice can be used for solving statistical and probability exercises.

Dividing Space into Regions by 3 Planes

Division of space by three intersecting planes in several different arrangements.

Attack of Pearl Harbor (1941)

The United States entered World War II after the devastating attack by the Japanese army.

Volume of a tetrahedron

To calculate the volume of a tetrahedron we start by calculating the volume of a prism.

Knee joint

The knee joint is made up by the femur, the tibia and the kneecap.

Added to your cart.