Vaša košarica je prazna

Kupovina

komad: 0

Ukupno: 0,00

0

What is infrared radiation?

In this lesson you can learn about infrared radiation.

The anatomy of the heart (intermediate)

This lesson introduces the position and anatomy of the heart, as well as the blood flow and heart sounds.

Is air visible?

This lesson introduces the properties of air.

The wave phenomena of sound

When does echo form? Why does sound spread easier at night? What is the secret to a good concert hall?

Can we vacuum on the Moon?

This lesson explains the concept of atmospheric pressure.

What material are objects made of?

Learn about the properties of materials that objects around us are made of.

Cardiovascular diseases Part 1

This lesson presents some types of cardiovascular diseases, including their diagnoses and treatment options.

The companion of Earth

This lesson explains the phases, the internal structure and surface of the Moon, as well as its effects on the Earth.

Added to your cart.