The Science Basics
By Timothy Hubble
Independent and Dependent Variables
Chosing a Good Hypothesis
Writing a Good CER
CER’s are a way to explain the experiment when you are done. C stands for claim. The Claim is where you make a statement to the problem, a response to the question, and an answer to the problem. An example of claim is the arm without any bug spray had more bites than the other arm. E stands for evidence. The evidence is where you provide data and facts that supports your claim. An example of evidence is I had eighteen bug bites on the arm that wasn't sprayed, while the arm that was sprayed had none. R stands for reasoning. The reasoning explains how the evidence is linked to the claim. It also explains why the experiment acted the way it did. An example of reasoning is because the bug sprayed arm repelled all of the insects from that arm they went to the other arm resulting in me getting eighteen bug bites on the arm that wasn't sprayed.