Which element is the primary component of steel wool?

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

What unit used for measuring cloth is equivalent to 40 yards?

What is the first phase of mitosis?

At what temperature on the Celsius scale does water freeze?

Who has been called the father of electricity?

What amino acid causes sleepiness following the consumption of a traditional Thanksgiving dinner?

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

What geographical instrument is used to measure altitudes and elevations?

What are the Southern Lights called?

What would you call a nautical unit of speed?

What is the process of turning used products into new products called?

What do we call the lower chambers of the human heart?

What is a scientist who specializes in the study of cells called?

What kind of anthropology is also known as ethnology?

What is the scientific name of the great white shark?

What is the term given to heat and light radiated from the sun?

Orange juice is a good source of which vitamin?

What word is the definition of 100,000 BTUs?

What is the voltage of a D cell battery?

What does the gall bladder secrete?

What is the total voltage of a series circuit using 5 AA batteries?

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

What is "coulrophobia"?

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