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chapter 3
read read read!!!
12
Science
7th Grade
09/15/2011

Additional Science Flashcards

 


 

Cards

Term

scientific explanation

 

Definition

decribes how somthing works or happens.

 

tree frogs are green so they can hide from preditors.

Term
empirical evidence
Definition

data  and observations that have been collected through a process.

 

there is no water in the desert.

Term
opinion
Definition

an idea that may be formed evidence but has not been confirmed by evidence

 

everyone loves the color blue.

Term
controversy
Definition

a public disagreement between groups

 

scientist arguing about what is the right explanation.

Term
scientific theory
Definition

a well-tested explanation for a wide range of observations or experimental results

 

a lot of scientist doing the same experiment

Term
scientific law
Definition

statement that describes what scientist expect to happen even under a particular set of conditions

 

"An object that rest in motion stays a motion."

Term
model
Definition

representation of an object or process.

 

carbon dioxide+ water+ sunlight+ food+ oxygen =photosynthesis

Term
system
Definition

parts that work together to preform a function or produce a result.

 

a toaster oven

Term
input
Definition

energy that goes in a system

 

cookies go in the oven

Term
process
Definition

what happens in a system

 

cookies getting cooked

Term
output
Definition

the energy that goes out of the system

 

baked cookies

Term
feedback
Definition

the output that changes in some way.

 

cookies are not fully baked, so you put them back in the oven.

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