It’s a Matter of Fact
This is defined as anything that has mass and takes up space.
What is matter?
Lemonade and air are both examples of this type of mixture where everything is evenly distributed.
What is a homogeneous mixture?
This property is calculated as the ratio of a substance's mass to its volume.
What is density?
True or False: A compound has the exact same properties as the individual elements that compose it.
What is False? (Elements change properties when they chemically react).
Freshly poured lemonade with no pulp or ice.
What is a homogeneous mixture (or solution)?
This type of substance always has a fixed, unchanging composition.
What is a pure substance?
This 3-letter word describes the specific substance in a solution that gets dissolved, like the mix in lemonade.
What is a solute?
Water changing from a liquid to a solid at 0°C is an example of this specific physical property.
What is freezing point (or melting point)?
True or False: Pure substances include both elements and compounds.
What is true?
A pure sample of distilled water (H2O).
What is a compound?
Unlike a compound, this type of matter features components that are physically blended rather than chemically joined.
What is a mixture?
Water acts as this in a sugar-water mixture because it is the substance doing the dissolving.
What is a solvent?
Most nonmetals lack this physical property, meaning they are poor at transferring heat or electricity.
What is conductivity?
True or False: If a substance can be separated into simpler substances only by chemical means, it must be a mixture.
What is False? (It would be a compound.)
A handful of gold atoms entirely unbonded to anything else.
What is an element?
Because it is made of sugar and water chemically joined in a fixed proportion, a cube of sugar is classified as this.
What is a compound?
A bowl of cereal and milk is classified as this type of mixture because its different parts are easily seen and separated.
What is a heterogeneous mixture?
This type of property can only be observed when the substances in a sample are changing into different substances.
What is a chemical property?
True or False: A solution can have varying amounts of solute, meaning it does not have a fixed composition.
What is True?
A jar filled with sand, pebbles, and water.
What is a heterogeneous mixture?
Heavier than just a lone atom, this is the smallest unit of a chemical compound made of two or more atoms bonded together.
What is a molecule?
This is the general scientific term for any evenly distributed, homogeneous mixture made by completely dissolving one substance into another.
What is a solution?
Flammability, or the ability to burn in the presence of oxygen, belongs to this broad category of properties.
What is a chemical property?
True or False: Carbon dioxide (CO2) is considered a molecule but cannot be called a compound.
What is False? (It is both).
The air we breathe, which contains a uniform blend of nitrogen, oxygen, and argon gases.
What is a homogeneous mixture?