The conclusion is the last piece of the science fair puzzle. Yet, it is probably the component that we need to take the most time with because it accounts for 20 points of our science fair project!
The conclusion has three parts: claim, evidence, and explanation.
Let's start with the claim. In the most simple terms, the claim is what you learned from your experiment. If you use your hypothesis (if you wrote a strong hypothesis), it should be easy for you to write. Your claim needs to be a statement of fact about your experiment, relating to your variables - independent and dependent.
For the evidence section, think just the facts! I don't want any speculation in this section. I just want the specific and relevant pieces of data that support your claim to be explained in this section. This is the section where you are building up the case for your claim (if you claim were ever to go on trial, you would want a lot of evidence to help it out).
The explanation section is where we are getting into the science behind your experiment. This section will show me how well you researched your topic before you started. You'll be bringing in prior knowledge, scientific principals and facts to back up your findings. Did they match what laws of science say? If so explain this link and continually support and connect to your claim and evidence. If not, make connections to your experiment and procedure as to why they don't match and start to create your own reasonings to make connections with what happened.
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