« previous next »
« previous next »
 

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Cosmic Microwave Background and the Curvature of Space Cosmic Microwave Background and the Curvature of Space
Marjane Satrapi, page from the "Kim Wilde" chapter of the graphic novel Persepolis. Marjane Satrapi, page from the "Kim Wilde" chapter of the graphic novel Persepolis.
One page of color vision chart. One page of color vision chart.
Insert the terminals into the relay socket in 30 and 87. Insert the terminals into the relay socket in 30 and 87.
Science Background Science Background
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
Video: Molecules, Membrane Permeability and Structure

For a complete list of videos, visit our video library