science and engineering practices Flashcards
scientific method
the way scientists study and learn about the world.
observation
using your five senses to gather information about something
qualitative observation
using you senses to describe the characteristics of an object-color, texture,taste.
exampls
smooth textur
brightly colored
quantitative observation
using numbers or measurements to describe something
example
10 meters
450 milliliters
176 grams
inference
an explanation of an observation based on prior knowledge
hypothsis
a prediction based on prior knowledge. Always written in an if then statement
example
IF i put a ice cub in the sun THen the ice cube will melt.
variable
any factor that can be manipulated, controlled for , or measured in an experiment
control variable
What must stay the same in the experiment
manipulated/independent variable
The thing that you are testing or changing in an experiment and it is graphed on the X-axis.
dependent/responding variable
what you are measuring or observing in an experiment and it is graphed on the Y-axis
c-e-r
claim evidence resoning
claim
is the answer to the question you are trying to answer
evidence
scientific data that supports your claim
reasoning
the how or why the evidence supports our claim : scientific rule
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conclusion
a written summary of an experiment that uses evidence to prove what you learned