Scientific Thinking
What are the elements in H2O?
Hydrogen (H) and Oxygen (O)
What are the steps to the scientific method?
Observation
Question
Hypothesis
Experiment
Conclusion
what is "the particular number in units that a variable may have"?
What is "A push or a pull"?
Force
Georgiana has the idea that salt water heats up faster than fresh water. Which of the following would be acceptable scientific proof of her hypothesis?
A) Three of her friends believe it.
B) She read a scientific journal that says it was so.
C) She did an experiment that showed it.
C
What is "the set of rules that are obeyed by every detail of everything in the universe?"
Natural Law
What is a "possible explanation that can be tested by comparison with scientific evidence"?
Hypothesis
What is "the difference between a measurement and a true value?
Error
What is "the amount of stuff and object contains"?
Mass
what is "careful description of how an experiment is conducted"?
a procedure
What kind of evidence is "evidence that can be seen independently by others if they repeat the same experiment or observation in the same way?"
repeatable evidence.
What is evidence that "documents what happened outside of opinion, and is measurable and recordable"?
Objective evidence
What is "A variable that changes in an experiment"?
What is "everything that has mass and takes up space"?
Matter
Why do we need to know the variables that need to be controlled?
To make sure the results of our experiment are due to our experimental variable and not some other cause.
What is "a process of learning that starts with asking questions and proceeds by seeking the answers to the questions"?
Inquiry
What is "a process of inquiry that begins with a hypothesis and proceeds to prove or change the hypothesis by comparing it with scientific evidence"?
Millie drives north for one and a half hours at fifty miles per hour. How far did she go in that time?
75 miles.
the ability to change or to cause change.
or
the stored ability to create force.
What is "a variable that gives location relative to an origin?
Position
What is the difference between deduction and induction?
Deduction is to make a conclusion based on prior premises, while induction is to arrive at a conclusion through observing many, many instances of a thing to be true. Deduction is a downward movement; induction is an upward movement.
What is the difference between a theory and a hypothesis?
An hypothesis is rarely accurate, and is only supported by a good guess and initial observations.
A theory is highly accurate, and is supported with plenty of evidence over generations.
Group 1: Est. Error = 4.5cm
Group 2: Est. Error = 3.9cm
Difference = 4.4 cm
Is there a significant difference here?
No.
What is "a quality that can change, often with a numerical value."
What is a "variable that causes another variable"?
the independent variable