CER
What does CER stand for?
Claim, Evidence, and Reasoning
What is the first step in the scientific method?
ask a question
What is an independent variable?
What is changed in an experiment
What is a model?
A representation of data
What is a claim?
The answer to the question
What is a hypothesis?
An educated guess (if, then statement)
What is the dependent variable?
What is measured in the experiment
Why use models?
explain data and evidence
What is evidence?
Data, models, and graphs that support the claim
What is the next step after experiment?
Analyze the data
What is the control variable?
What stays the same (constant) throughout the experiment
What makes a good scientific question?
Testable and Measurable
What is resoning?
Explaining how the evidence supports the claim.
Why should experiments be repeated?
To ensure accurate results and evidence (proof)
What is the independent variable?
"If a person consumes more caffeine, then their heart rate will increase, while keeping daily exercise levels and sleep hours consistent."
caffeine
How do you get your explanations?
Use evidence and reasoning skills
Identify CER in this statement: "Plants grow taller in sunlight"
Claim: Plants grow better in sunlight
Evidence: Grows taller
Reasoning: Sunlight supports photosynthesis
What are the steps of the scientific method?
Question, Hypothesis, Experiment, Analyze, Conclusion
What is the dependent variable in this statement?
"If the amount of sunlight, then the plant height will increase, assuming constant water and soil"
sunlight
What is the most important thing to follow when doing experiments?
Lab safety