What's the Matter?
This is the smallest unit of matter.
What is an atom?
This is the most orderly arranged state of matter.
What is solid?
This is the name of the process of going from the liquid phase to the gas phase.
What is evaporation?
OR
What is vaporization?
[Half-credit may be given to boiling, which is a bit too specific of an example.]
True or False: A great change in scent can indicate a chemical reaction.
What is True?
This law states that "matter cannot be created or destroyed. Atoms are simply rearranged."
What is the Law of Conservation of Matter?
These are the two types of mixtures.
What are homogeneous and heterogeneous?
True or False: All solutions involve at least two phases of matter. For example, that means if you have a liquid solvent, you must have a solute that is solid or gas.
What is False?
Physical change or Chemical change:
The act of blending fruit and ice to make a smoothie
What is a physical change?
If you have a gas product from a chemical reaction, you're likely to notice this happen in a beaker.
What is bubbling?
OR what is fizzing?
OR what is bubble formation?
True or False: Every reaction must have multiple products.
What is False?
These are the two kinds of pure substances.
What are elements and compounds?
This phase of matter has no fixed shape, but does have a consistent volume.
What is liquid?
Physical change or Chemical change:
This is what happens when dewdrops condense onto blades of grass.
What is a physical change?
You feel heat coming off of a previously lukewarm flask. This is evidence of a chemical reaction, except in one specific instance. Name that instance.
What is (a Bunsen burner or hot plate) heating up / boiling what's in the flask?
Burning, or fire, is always indicative of this.
What is a chemical change?
OR What is a chemical reaction?
Something in the aqueous state (aka. a solution) can be classified as this form of matter.
What is a homogeneous mixture?
[Half-credit if only "mixture" is ever said. No credit for "heterogeneous mixture."]
This phase of matter is known to FILL the container that it's in.
What is a gas?
Physical change or Chemical change:
This is what occurs when a bitten apple gets brown over the course of a day or two.
What is a chemical change?
A solid product of a chemical reaction between liquids and/or solutions is called this.
What is a precipitate?
OR what is a precipitant?
A melting point is considered this kind of property.
What is a physical property?
This is the definition of "heterogeneous."
What is (something akin to)
"non-uniform composition?"
OR "made/mixed inconsistently?"
OR "you can see different parts with just your eyes?"
This is what we call a hyperheated gas.
What is plasma?
This is the phase change in which a solid changes directly to a gaseous state, with no liquid intermediate.
What is sublimation?
This is the only remaining common sign of a chemical reaction besides a solid product, a gas product, a noticeable change in heat, light formation, and a significant change in odor.
What is (distinct) change in color?
This is the official name for any starting materials for a chemical reaction.
What are reactants?
OR
What is "reactants?"