earth science

claim?

a statement about the results after an investigation or lab.

evidence

scientific data or observations that support the claim.

reasoning

the explanation that connects the evidence to the claim using scientific princciples

step 1 of scientific method

observation

step 2 of scientific method

ask a question

step 3 of scientific method

form a hypothesis

step 4 of scientific method

test the hypothesis

step 5 of scientific method

analyze results

step 6 of scientific method

draw conclusions

step 7 of scientific method

communicate results

what is a variable?

anything that can change during an experiment

what does quantitative data deal with?

numbers, measurements, height, area, volume

what does qualitative data deal with

descriptions, observations, colors, textures, smells

true/false: there should be one dependent variable and one independent variable- everything else should be constant.

true

control group

the group not given the treatment

what is an independent variable?

the factor manipulated by the experimenter- IV AFFECTS DV

what is a dependent variable?

the factor that can change as as a result of the independent variable.

what is a constant?

parts that DO NOT change in the experiment

experimental group

the group is given a different amount of the treatment (compared to control)

law

a statement about how the natural world behaves for which no exception have ever been found (hint: a law describes what happens!)

theory

an explanation based on observation and experimentation that has been tested and confirmed as a general explanation that has been tested and confirmed as a general explanation for a phenomenon (hint: a theory explains why something happens!)