Compounds and mixtures
Flashcard
•
Science
•
6th - 8th Grade
•
Hard
Barbara White
FREE Resource
Student preview
19 questions
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1.
FLASHCARD QUESTION
Front
Matter Noun
[mat-er]
Back
Matter
Anything that possesses mass and takes up space, which constitutes all observable physical substances in the universe.
Example: Matter exists in different states (solid, liquid, gas), which are defined by the arrangement and movement of their particles, as shown for water.
2.
FLASHCARD QUESTION
Front
Pure Substance Noun
[pyoor sub-stuhns]
Back
Pure Substance
A form of matter with a constant chemical composition and distinct properties that cannot be separated by physical means.
Example: Gold is a pure substance because it is an element, meaning it is made up of only one type of atom.
3.
FLASHCARD QUESTION
Front
Mixture Noun
[miks-cher]
Back
Mixture
A combination of two or more substances that are not chemically bonded and can be separated by physical methods.
Example: This diagram shows a solution, a type of mixture where one substance (the solute) is evenly dissolved and spread throughout another (the solvent).
4.
FLASHCARD QUESTION
Front
Element Noun
[el-uh-muhnt]
Back
Element
A pure substance consisting of only one type of atom that cannot be broken down into simpler substances by chemical means.
Example: This diagram shows an atom of the element Oxygen, which is made of only one type of atom with 8 protons in its nucleus.
5.
FLASHCARD QUESTION
Front
Compound Noun
[kom-pound]
Back
Compound
A pure substance containing two or more different elements chemically combined together in a fixed, definite proportion.
Example: This diagram shows a molecule of carbon dioxide (CO₂), a compound made of one carbon atom chemically bonded to two oxygen atoms.
6.
FLASHCARD QUESTION
Front
Heterogeneous Mixture Noun
[het-er-uh-jee-nee-uhs miks-cher]
Back
Heterogeneous Mixture
A type of mixture in which the composition is not uniform throughout and its individual components remain physically distinct.
Example: This diagram shows that when oil and water are mixed (agitated), they form a heterogeneous mixture where oil droplets are visible and not evenly distributed.
7.
FLASHCARD QUESTION
Front
Homogeneous Mixture Noun
[hoh-muh-jee-nee-uhs miks-cher]
Back
Homogeneous Mixture
A type of mixture, also known as a solution, in which the composition is uniform throughout the entire substance.
Example: This diagram shows a solution where solute particles are uniformly distributed in a solvent, making it a homogeneous mixture because its composition is the same everywhere.
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