An organized way of studying things and finding answers to questions.
What is science?
100
All living things have cells which provide orderly structure. This helps living things be __________.
What is organized?
100
A prediction that can be tested.
What is hypothesis?
100
The largest most general category in the classification system.
What is Kingdom?
100
Russian scientist who suggested that Earth's early atmosphere was composed of ammonia, hydrogen, methane, and water vapor.
Who is Alexander I. Oparin?
200
Allows scientists to propose hypotheses, test their ideas for many trials, and report their results.
What is scientific method?
200
In order to survive plants and some other organisms ____
________ from the sunlight.
What is use energy?
200
The standard to which the outcome of a test is is compared is called the _________.
What is control?
200
System used by modern scientists to name organisms.
What is binomial nomenclature?
200
Oparin hypothesized that gases could have combinded to form the more complex compounds found in _____ ______.
What is living things?
300
An explanation of things or events based on scientific knowledge that is the result of many observations and experiments.
What is theory?
300
To carry on its daily activity and to survive, and organism must ________ to stimuli.
What is respond?
300
A logical answer to a question based on data and observations.
What is conclusion?
300
A group of similar species.
What is genus?
300
It is estimated that the earth is _______ years old.
What is 4.6 billion?
400
A statement about how things work in nature that seems to be true all the time.
What is scientific law?
400
An organism go through many changes as it ________ _____ _______.
What is grows and develops?
400
In an investigation this is the same as identifying the question.
What is state the problem?
400
The evolutionary history of an organism, or how it has changed over time.
What is phylogeny?
400
Stanley Miller and Harold Urey sent currents through gases and found that materials such as ____ ____ formed.
What is amino acids?
500
When scientists conduct experiements, they are careful to accurately measure temperature, mass, volumn, and length using the _____ ____ ____ _____?
What is International System of Units?
500
To make more of their own kind.
What is reproduce?
500
Testing a hypothesis could also be called.
What is performing an experiment?
500
________ ______ are arranged in steps with two descriptive statements at each step. You can use these tools to identify and name a species.
What is dichotomous key?
500
These two American scientists set up an experiment to test Alexander Oparin's hypothesis that gases could have combined to form more complex compounds found in living things.