General Science
Biology
Chemistry
Physics
Space
100

What is the chemical process where sugar is converted into energy called?

Cellular Respiration 

100

What is the production and emission of light by a living organism? 

Bioluminescence

100

What is an atom or molecule that has a different number of electrons than protons, so it has a charge called?

Ion

100

What are the laws of electrical charges?

1) Like charges repel one another

2) Opposite charges attract

100

When was the Sun born?

Approx. 4.6 billion years ago

200

What blood type do you need to be a universal donor?

O-

200

What is the most common element inside the human body?

Hydrogen (62.9%)

200

What type of compound is NaCl?

Ionic Compound

200

What are the three methods of charging?

Friction, Contact, Induction

200

When did the Big Bang occur?

Approx 13.7 billion years ago

300

Humans share approximately 98.8% of DNA with what animal?

Chimpanzees

300

Which organism is found at the first (lowest) trophic level?

Autotrophs

300

What is the term for 2 or more forms of an element that have the same number of protons but have a different number of neutrons (same atomic number but different atomic mass) called?

Isotope

300

If you're talking about electricity, what does "DC" stand for?

Direct Current

300

What is a small body of matter from outer space that enters the earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light?

Meteor

400

The elephant clock was contributed to science from which culture?

Islam

400

What are environmental factors that prevent the growth in the number of organisms or prevent them from moving to a new habitat called?

Limiting Factors

400

Which 7 elements commonly exist as diatomic molecules?

H, O, F, Br, I, N, Cl

400

What are the 3 laws of Newton?

1) Every object moves in a straight line unless acted upon by a force.

2)The acceleration of an object is directly proportional to the net force exerted and inversely proportional to the object's mass.

3) For every action, there is an equal and opposite reaction.

400

What is the geocentric solar system model and who created it?

Every planet revolves around the Earth; Aristotle

500

Many surgical instruments were created by which culture?

Islam

500

What term describes organisms of the same species inhabiting a particular region?

Population

500

What is the process in which the nuclei of the atoms fuse together and form larger atoms called?

Nuclear Fusion

500

What constant is referred to as "The Universe's Clock"?

Speed of light

500

What is a cloud of gas and dust in outer space called? (Hint: Stars start their lives as these.)

Nebula