7-117 Lesson 5 Reading One: What Evidence Would I Use to Tell If the Stones in a Ring Are the Same or Different?

The first step of a scientific explanation or argument is

• claim

• evidence

• reasoning

• bellwork

Tags

NGSS.MS-LS2-4

Which property does NOT support our claim that the stones in rings #1 and #2 are different.

• density

• color

• hardness

• melting point

Tags

NGSS.MS-PS1-2

Which property does NOT support our claim that the stones in rings #1 and #2 are different.

• density

• solubility in water

• hardness

• melting point

Tags

NGSS.MS-PS1-2

The last step in a scientific explanation is __________.

• claim

• evidence

• reasoning

• observation

Which scientific principal is BEST for supporting the argument that rings #1 and #2 are different?

• Properties are unique characteristics that help identify a substance and distinguish one substance from another

• A mixture is made of more than one substance (or more than one type of atom or molecule).

• A chemical reaction happens when two or more substances combine in ways that make new substances form that have different properties from the beginning materials

• Atoms cannot be created or destroyed. In a chemical reaction, the number of atoms stays the same, therefore matter and mass are always conserved.