Physiology

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience!

Audisee(R) eBooks with Audio combine professional narration and sentence highlighting for an engaging read aloud experience!

Until the mid-1990s, scientists only guessed that the universe held exoplanets, or planets beyond our solar system.

Earth is truly amazing!

Mars is an exciting place, with deserts, volcanoes, and winds that kick up giant dust storms!

What would you do if you were the moon?

Have you ever wondered what it would be like to go into outer space?

Did you know that Pluto has mountains, glaciers, and even blue skies?

Have you ever dreamed of walking on Mars?

Did you know that companies and governments send more than one hundred satellites into space every year?

Black holes are one of the greatest mysteries of outer space.

Did you know that astronauts work on Earth and in space to study places beyond our planet's atmosphere?

Some of the most powerful creatures are also the smallest!

Flying insects hold one of the great keys to survival: wings.

Did you know that there are around ten quintillion insects alive at any one time?

With their unique ability to spin silk that is stronger than steel, spiders make cunning traps as well as beautiful webs.

Did you know that companies and governments send more than one hundred satellites into space every year?

Have you ever wondered what it would be like to go into outer space?

Did you know that Pluto has mountains, glaciers, and even blue skies?

Have you ever dreamed of walking on Mars?

Black holes are one of the greatest mysteries of outer space.

Did you know that astronauts work on Earth and in space to study places beyond our planet's atmosphere?

Did you know that there are around ten quintillion insects alive at any one time?

Some of the most powerful creatures are also the smallest!

Flying insects hold one of the great keys to survival: wings.

With their unique ability to spin silk that is stronger than steel, spiders make cunning traps as well as beautiful webs.

Do you enjoy performing experiments or studying how the universe works?

Earth is truly amazing!

Mars is an exciting place, with deserts, volcanoes, and winds that kick up giant dust storms!

What would you do if you were the moon?

Until the mid-1990s, scientists only guessed that the universe held exoplanets, or planets beyond our solar system.

Birds do it, bees do it, penguins do it, and orangutans do it.

Do plants really move?

Do plants really move?

Do you enjoy performing experiments or studying how the universe works?