Claim ~A statement about the solution to the problem ~A statement that answers a question
Evidence ~ scientific data that supports the claim ~data can be numbers (quantitative data) or observations using the five senses (qualitative data)
Reasoning ~ the explanation that shows why the data counts as evidence to support the claim ~ the explanation often includes scientific principles or background knowledge of the topic
Practice On your paper, write a statement explaining whether or not any of the liquids are the same substance. Use the format of conclusions based on data in your explanation. DensityColorMassMelting Point Liquid 1 0.93 g/mLno color38g-98°C Liquid 2 0.79 g/mLno color38g26°C Liquid 3 13.6 g/mLsilver21g-39°C Liquid 4 0.93 g/mLno color38g-98°C
Answer Key Claim—Liquids 1 and 4 are the same liquid. Evidence—Liquids 1 and 4 have a density of is.98 g/mL, a melting point of -98°C, and both have no color. Reasoning—These physical properties are unique to a particular substance. Since the density and melting point of these two liquids are exactly the same, the liquids must be the same.