Everyone should have a grasp on the basic processes that make our world tick. Take this quiz to see how good you are at answering some fundamental science questions. Don't worry — no rocket science knowledge is required.
Which direction does the needle of a compass point?
What is every object in our world made of?
Newton's first law of motion states that an object in motion tends to what?
stay in motion
slowly decrease in speed
cause an equal and opposite reaction
About what percentage of Earth is covered by water?
The word habitat refers to what?
a large, open area
a place where an organism lives
a subset of a specific ecosystem
How many days does it take Earth to travel around the sun?
When do the coldest temperatures generally occur?
shortly after sunrise
at 2 a.m.
just before sunrise
How many subatomic particles are in an atom?
About how long ago did modern humans first appear?
What does the periodic table display?
elements according to their atomic numbers
the evolutionary time periods of life on Earth
the geologic layers that represent different eras of Earth's creation
What term describes a group of organisms and their physical environment?
If the pressure is the same, what kind of air has the greatest density?
What are the abiotic factors of an environment?
the nonliving parts of an environment
the asymmetrical parts of an environment
the disappearing parts of an environment
How are synthetic chemicals different from so-called natural chemicals?
Natural chemicals are healthier.
They aren't different.
Synthetic chemicals tend to be more toxic.
Newton's third law of motion states that every action has what?
both motion and rest
an equal and opposite reaction
How old are the oldest fossils found on Earth?
about 3.8 billion years
about 137 million years
about 82 million years
What does the nucleus of a cell contain?
According to cell theory, what are cells?
the building blocks of dark matter
the basic unit of life
the same for all mammals
What is the highest taxonomic rank in the widely-used Linnaean system of biological classification?
What is the first step of the scientific method?
state your hypothesis
identify the problem
test your hypothesis
What is all matter made of?
In weather, what does the term "front" refer to?
the place where two air masses meet
a mass of hot, humid air
the opposite of "back"
What is the hottest layer of our planet?
What type of galaxy is the Milky Way?
Which characteristic do all mammals have?
What makes something a poison?
its presence in snakes
What mineral is found in a saline solution?
What do mitochondria provide for an organism's body?
What happens to iron when it is exposed to oxygen?