Which element is the primary component of steel wool?

What was the first operating system for personal computers, introduced in 1978?

What general name is also given to natural satellites?

Who invented the first engine-powered airplane?

What are the two major elements making up the sun?

Who was the first woman in space?

The smallest bones in the body are located where?

What is the name for the narrow part in the middle of a standard hour glass?

What does a caterpillar morph into?

What part of the microscope do you look through to see specimens?

What is the usual ounce capacity of a jigger?

What is the most common chemical element found in the Earth's atmosphere?

Who is the Taiwanese-born, Stanford-educated co-founder of Yahoo?

What is a mixture of gasoline and ethanol called?

Distance equals speed times what?

What is it called when an object makes a full circular rotation?

What element does hydrogen combine with to make the compound water?

What was Toyota's first popular hybrid car called?

Electrons flow through a circuit from a power source and return to the power source via what?

A unit of measure of absorbed radiation is known as what?

Based on Kepler's first law, the path of a planet is defined as what shape?

How many volts are in a kilovolt (kV)?

What is a character encoding scheme used by many computers called?

At what temperature does water first boil?

What is force that resists the separation of two bodies in contact called?