Galileo

Who is Galileo, what year did he live and why is he famous?  -->Answer

Fire Ants

Worldwide, how many species of fire ants are in existence? Which continents have most of them? --> Answer

Fresh water

From where on the planet does most of our fresh water come from? --> Answer

Skin

How much skin does an average person have?  -->Answer

Thanks Giving Day

What is the origin of Thanks Giving Day which is annually observed in the United States and Canada?  -->Answer

Mountains

Where can we find the tallest mountain in the solar system?  -->Answer

Fever

Fever is a rise in body temperature above ________? Fahrenheit, Celsius? We know that “fever“ is a symptom of many diseases such as infection by a virus or a bacterium. Is the term “fever“ also used to name certain diseases?  -->Answer

Human embryo

In a human embryo, at how many weeks gestation can a mass be detected that will later form into the baby’s heart and lungs?  -->Answer

Glass

Is glass a solid or a liquid?  -->Answer

Kites

Is it true that kites were used to collect weather data from the 1700's until the early 1900’s? Are kites used for any special celebrations in Japan and China?  -->Answer

Hummingbirds

Hummingbirds are known as the smallest birds. How many kinds and species of hummingbirds are in existence? What is the smallest hummingbird? Is it true that they can fly backwards and even upside down for short distances? What is their maximum speed?  -->Answer

White light

What are the colors that blend to form "white light"?  -->Answer

Characteristics of an “intelligent” human being

What are the three characteristics that people generally attribute to an “intelligent” human being?  -->Answer

Thickness of Earth’s crust, mantle and core

We know that Earth is the densest of the planets in our solar system and that it is made up of a crust, mantle and core. Which one of these three components is the thinnest and what is its average thickness?  -->Answer

Halloween

The Halloween customs that are observed in North America on October 31 come from the beliefs of which people? What were those beliefs?  -->Answer

Earth Day

When is “Earth Day”? When did it start? Who pioneered the concept, and in what year?  -->Answer

Dream

Are there some people who “never” dream? --> Answer

Nursing

Is it true that towards the end of the 18th century nursing was considered an unsuitable occupation for “proper” young women? How so? What events in the United States established the need for more nurses in both military and civilian life?  -->Answer

Earth-Moon

If you are making models of the Earth and Moon to show their relative size and mass and the Earth is represented as a ball of clay 6 inches in diameter (about the size of a large bagel) how big would the Moon be?  -->Answer

Arabic alphabet

The Arabic alphabet is an offshoot of what language? Which current languages contain Arabic words?

Stars in Milky Way galaxy vs cells in human body

If you were to make a comparison between the number of stars in the Milky Way and the number of cells in the human body, which one do you think is greater, and by how much?

Size of Milky Way Galaxy

How many stars are estimated to be in our Milky Way Galaxy?And how many planets? Going with the speed of light, how many years would it take to go from one end of the Galaxy to the other end? Since everything is moving in space, how fast is our Milky Way Galaxy moving?

Vitamin C fruits & vegetables

Name 3 common fruits and 3 vegetables in our diet that contain Vitamin C.

Dog-faced monkeys

These monkeys, also known as “dog-faced monkeys”, are powerful fighters, showing little fear of larger animals, including humans, and have been known to successfully battle leopards, their worst enemies.  What is their name?

Cells in human body

How many cells are estimated to be in a human body? Are they all of the same size? How many of them can fit on the head of a pin?

Country with 2000 islands

This country contains more than 2,000 scattered islands and has one of the largest merchant fleets in the world.  Name this country.

Smallest particle

What is the smallest particle in an element that exhibits all the chemical properties unique to that element?  100 million of such particles positioned in a row would measure about a centimeter in length. Name this particle.

Mountains

What percentage of the world’s land mass is taken up by mountains, and what percentage of the world’s population lives on mountains?

REM sleep

What is REM sleep and what are its characteristics? Does everyone dream?

Human blood vessels

What is the total length of the blood vessels in the human body?