Biology
The most common element in the human body
Oxygen.
These are the only two planets in our solar system without moons. What planets are that?
Mercury & Venus.
What matter has a definite volume but no definite shape?
Liquids
This is the hardest naturally occurring substance.
Diamond
What unit is resistance measured in?
Ohm
What is the only human body part that can't repair itself?
Teeth
What color is the sunset on Mars?
Blue
Who is the English chemist and physicist that discovered hydrogen.
Henry Cavendish
Which water weighs the most?
Seawater
What electrical term is AC an abbreviation for?
Alternating Current
This animal has the highest blood pressure.
Giraffe
What are the two main parts of a comet?
Nucleus, tail, and coma
What is the smallest unit of a substance that retains the properties of that substance?
Atom
What is the definition of dust?
A particle small enough to be carried by air currents.
What word describes a material which maintains a magnetic field after an external field is removed?
Ferromagnetic
This living animal has the heaviest brain:
Sperm Whales
What kind of star is our sun?
Yellow Dwarf
Which substances control the rates of chemical reactions?
Catalysts
The largest hailstone recorded was closest to this object in diameter.
17.5 inches in diameter
How many watts is one horsepower?
What is the first genetically engineered organism.
Tobacco plant
Why isn't Galileo credited with the discovery of Neptune?
He thought it was just a star
The symbol Sb stands for stibnum or stibnite. What is the modern name of this element?
Antimony
The first Earth Day was celebrated in what year?
1970
What is the irregular and instantaneous motion of air called?
Turbulence