exam s2
In which step of the scientific method do we want to use data tables and graphs
analyze data
Which of the following hypothesis is written correctly
If I freeze a tennis ball, then it will not bounce as high
All the things in an experiment that must be the same to make it fair are called
controlled variables or condtants
In science an educated guess is called a/an
hypothesis
In an experiment, the one variable that changed is called the
independent varialbe
Which of the following is not a rule when writing a hypothesis
it should restate the question
A summary of many experiments results and observations that have been proven is know as a/an
law
What skill is a scientist using when she listens to the sounds that whales make
making observations
The process of obtaining information by using the senses is called a/an
observation
What is the correct order of the steps in the scientific method
Ask questions, make a hypothesis, analyze results, draw conclusions, communicate results.
An experiment that tests only one factor at a time by using a comparison of a control group and an experimental group is
a controlled experiment
When a scientist shares here findings with other scientist she is
communicating results
The final part a summary of reasonable inferences is a/an
conclusion
In an experiment the factor that we measure is called the
dependent variable
Which question would be the best high level scientific question
does the amount of salt in water affect the temperature at which it boils
When you decide whether or not the data supports the original hypothesis you are
drawing conclusions
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the dependent variable is
the number of plants in the water
a well supported explanation that ties together many hypothesis and observations is a/an
theroy