Identifying Matter by its Properties
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Objective
Ask questions to plan and carry out investigations to identify substances based on patterns of their properties. Emphasize using properties to identify substances. Examples of properties could include color, hardness, conductivity, solubility, or a response to magnetic forces. Examples of substances could include powders, metals, minerals, or liquids. (PS1.A)
Part 1 of 4
Warm-up video
Miacademy & MiaPrep Learning Channel · 7:39Vetted channel
We don't generate video — this one is by Miacademy & MiaPrep Learning Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
Physical properties are properties that can be observed without changing the chemical composition of a substance, while chemical properties can only be observed when the chemical composition changes.
- 2
Intensive properties, such as color and density, remain the same no matter how much of the substance is present, but extensive properties, like mass and volume, depend on the amount of the substance.
- 3
Examples of chemical properties include a substance's reactivity with other chemicals, its flammability, and its ability to rust.
Part 3 of 4
Practice
6 questions
Define the term 'property' as it relates to matter, and explain how properties are useful in identifying substances.
Classify each of the following properties as either physical or chemical: flammability, color, density, reactivity with acid.
Part 4 of 4
Exit ticket
Quick comprehension check
“Describe an investigation you could conduct to determine if an unknown white powder is baking soda or cornstarch. Include at least two properties you would test and what results you would expect for each substance.”
Sample answer included in the free materials
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