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Scientific method	A set of steps scientists use to answer questions		sci-scientific-method
Observation	Using your senses or tools to notice something		sci-scientific-method
Question	What you want to find out		sci-scientific-method
Research	Learning what is already known about a topic		sci-scientific-method
Hypothesis	A testable prediction or possible answer to a question		sci-scientific-method
Prediction	A statement of what you expect to happen		sci-scientific-method
Experiment	A fair test to check a hypothesis		sci-scientific-method
Variable	Something that can change in an experiment		sci-scientific-method
Independent variable	The thing you change on purpose		sci-scientific-method
Dependent variable	The thing you measure as the result		sci-scientific-method
Controlled variable (constant)	A factor kept the same in every trial		sci-scientific-method
Control group	The group that doesn't get the change, used for comparison		sci-scientific-method
Experimental group	The group that gets the change being tested		sci-scientific-method
Data	Information collected during an experiment		sci-scientific-method
Quantitative data	Data in numbers		sci-scientific-method
Qualitative data	Data in descriptions, such as color or smell		sci-scientific-method
Analysis	Looking carefully at data to find patterns		sci-scientific-method
Conclusion	What the results show about the hypothesis		sci-scientific-method
Trial	One run of an experiment		sci-scientific-method
Repeated trials	Doing the test again to make results more reliable		sci-scientific-method
Sample size	The number of items or subjects tested		sci-scientific-method
Bias	An unfair influence on results		sci-scientific-method
Fair test	A test in which only one variable changes		sci-scientific-method
Reproducible	Others can repeat the experiment and get the same results		sci-scientific-method
Peer review	Other experts checking a scientist's work before it is published		sci-scientific-method
Theory	A well-tested explanation supported by lots of evidence		sci-scientific-method
Scientific law	A statement that describes a pattern in nature, often as an equation		sci-scientific-method
Difference between theory and guess	A theory is backed by much evidence; a guess is not		sci-scientific-method
Model	A representation used to explain or predict something		sci-scientific-method
Inference	A conclusion based on evidence and reasoning		sci-scientific-method
Evidence	Facts that support an idea		sci-scientific-method
Anomaly	A result that doesn't fit the pattern		sci-scientific-method
Error	A difference between a measured value and the true value		sci-scientific-method
Accuracy	How close a measurement is to the true value		sci-scientific-method
Precision	How close repeated measurements are to each other		sci-scientific-method
Average (mean)	The sum of values divided by how many there are		sci-scientific-method
Median	The middle value of an ordered list		sci-scientific-method
Mode	The value that appears most often		sci-scientific-method
Range	The difference between the largest and smallest values		sci-scientific-method
Line graph	Best for showing change over time		sci-scientific-method
Bar graph	Best for comparing categories		sci-scientific-method
Pie chart	Shows parts of a whole		sci-scientific-method
Scatter plot	Shows how two variables relate		sci-scientific-method
Title of a graph	Tells what the graph is about		sci-scientific-method
Axis labels	Say what is measured and the units		sci-scientific-method
Lab report	A written account of an experiment		sci-scientific-method
Materials list	Tells what you need for an experiment		sci-scientific-method
Procedure	The steps followed in an experiment		sci-scientific-method
Safety first	Follow safety rules in every experiment		sci-scientific-method
Metric system	The measurement system scientists use worldwide		sci-scientific-method
Science fair	A contest where students show their experiments		sci-scientific-method
Why change only one variable?	So you know what caused the result		sci-scientific-method
Hypothesis format	If I do this, then that will happen, because...		sci-scientific-method
Correlation	Two things changing together		sci-scientific-method
Causation	One thing causing another		sci-scientific-method
Does correlation prove causation?	No		sci-scientific-method
Placebo	A harmless pill with no medicine, used for comparison in tests		sci-scientific-method
Double-blind test	Neither the subjects nor the testers know who gets the real treatment		sci-scientific-method
Pseudoscience	Ideas that look like science but aren't tested properly		sci-scientific-method
Skepticism	Asking for evidence before believing a claim		sci-scientific-method
Falsifiable	Able to be proven wrong by evidence		sci-scientific-method