Introduction


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		Welcome to the National Lab! Here you can do science experiments with students across the country—and publish your results online! During your investigation, you will follow the steps below.
		Review background information before starting your investigation.
		Identify a question that can be answered through scientific investigation.
		Design and conduct a scientific investigation.
		Use tools and techniques to gather and analyze data.
		Develop descriptions and explanations using evidence.
		Think critically and logically to connect evidence with explanations.
		Recognize and analyze alternative explanations and predictions.
		Communicate investigations and explanations.
		Use mathematics in all aspects of scientific inquiry.
		Register for the National Lab To share your data online, register now for the National Lab. You can also register during Step 6, Recognize Alternatives. Please read our Privacy Statement and Terms of Use.