Which set of data would be best illustrated with a graph bar?
- the fact of our spare exercising on heart rate
- the number of skyscrapers in five different cities
- and illusion of how the humidity in the air response to the temperature of the air
- data showing how the number of hours spent studying affects the score on an exam
all graphs need a title
true or false
as the number of rabbits in a community goes up, the number of foxes in the same community goes up. this is an example of what type of relationship?
- direct
- indirect
- cyclic
- non-related
the number of spiders in the house and the outside air temperature have been an indirect relationship. what will happen if the number of spiders in the house as the outside air temperature decreases?
- decrease
- increase
- stays the same
- increased and decreased in a regular pattern
scientific conclusions are based only on observable evidence
true or false
why is it necessary to evaluate an experiment?
- to poke holes in a scientists results
- to prove the experiment results are incorrect
- to determine whether or not conclusions are reliable and accurate
evaluating an experiment can include identifying things you would do differently if you were to repeat the experiment later
true or false
which of the following could negatively affect the reliability of an experiment
- testing only one variable at a time
- having variables that are difficult or even impossible to control
- keeping the control monitored to make sure it remains on changed
scientist can communicate the results of a scientific investigation in numerous ways including the use of journals and periodicals. true false
which of the following is a required to change the scientific knowledge base?
- changes in society opinions on something
- new evidence that calls for a vision of all ideas
- changes in a scientists personal religious views
failures in scientific endeavor are discouraged and have little value.
true false
which of the following questions would not be answered by science?
- which type of flowers hummingbirds prefer for feeding?
- what effect does climate have on the amount of pollution in the air?
- what is good and bad behavior in terms of actions?