Vocabulary 1
An educated guess that can be tested
Hypothesis
Based on evidence and reasoning, made at the end of an experiment
Inference
the variable that is not changed and that is compared to
Control Group
Data you can see/visual
Qualitive Data
Why is it important for scientific experiments to be repeatable?
Repeated experiments ensure that results are reliable and not due to chance.
Must write whether or not your data supported or rejected your hypothesis
Conclusion
Something you already know to make a hypothesis
Background Knowledge
The outcome or results
Dependent Variable
Work or experiments reviewed by peers
Peer Review
Why is it important to have a control group in an experiment?
So scientists can have something to compare to and will be able to tell if anything actually changed.
tool used to measure liquid/measure from bottom
Graduated Cylinder
Worldwide measuring system
Metric System
The thing or variable that changes in an experiment
Independent Variable
Something proven and seen with no doubt
Law
Why is it important for scientists to share their results with others?
So other scientists can check the work, test it again, and see if they got the same results.
Tool used to measure liquid or powder in liters
Beaker
Provides Visuals
Graph
A physical representation
Scientific model
Tested many times with the same results, but never actually seen before
Theory
Why can scientific ideas change over time?
Because new evidence or advanced technology can show different data.
Used to measure liquids in liters/wide bottom, skinny top
Flask
The variable that changes
experimental group
Information using numbers and measurements
Quantitative Data
Experiments must be repeated multiple times to achieve results
repetition
Why is it important for scientists to check each other's work?
To catch mistakes, reduce bias, and make sure the results are solid.