CER September 25th

What does it mean?? * write this underneath your cer insert Claim: Statement about the results of an investigation An answer to a question Evidence: Scientific data used to support the claim (qualitative or quantitative) Reasoning: Ties together the claim and the evidence. HOW or WHY does that evidence support the claim??? Includes scientific principles that are important to the claim

CER EXAMPLE Is air made up of matter? Claim: Air is matter Evidence: All matter has mass and takes up space.. For example, a deflated balloon has a mass of .065g. If we were to blow up the balloon, its mass increases to .070g, and the balloon is taking up more space. Reasoning: Air has both characteristics of matter because both the mass and volume of the balloon increased after we added air to it.

In short A CLAIM STATES THE CASE EVIDENCE TELLS/SHOWS US WHAT HAPPENED REASONING TELLS US WHY OR HOW THAT EVIDENCE SUPPORTS THE CLAIM REASONING DEFENDS THE EVIDENCE

What type of eclipse took place on august 21st, 2017? Claim: On August 21st, 2017, a partial solar eclipse occurred. Evidence: The moon passed through the sun’s light, casting a shadow on Earth and making the sky temporarily darker. We only saw part of the sun during those seconds. We were in the penumbra portion the shadow. Reasoning: A partial solar eclipse occurs when the moon passes almost directly between the sun and the Earth, and the moon casts only the outer part of its shadow, the penumbra, on Earth. The sky temporarily darkens. This incident occurred on August 21stduring a partial solar eclipse.