States of Matter
This state of matter has a fixed shape and a fixed volume.
solid
This type of mixture, like a muddy puddle, has parts that are large enough to see and will settle out over time.
suspension
This type of chemical reaction absorbs heat, causing the surrounding environment to feel colder.
endothermic
This measures how fast a chemical reaction happens.
Reaction Rate
This type of substance tastes sour and turns blue litmus paper red.
An Acid
This is the process of a liquid turning into a solid, like water becoming ice
freezing
In a cup of salt water, the salt is completely dissolved. Because it dissolves, the salt is called this.
solute
This type of chemical reaction releases energy, usually in the form of heat or light.
exothermic
Heating up a reaction usually makes it happen faster by increasing this.
Temperature
This type of substance tastes bitter, feels slippery, and turns red litmus paper blue.
Base
This is the exact term for a liquid turning into a gas, which happens when you boil water.
evaporation
A mixture where one substance is evenly blended into another so you can no longer see the separate parts (like lemonade).
solvent
The specific scientific term for the minimum amount of energy required to start a chemical reaction
activation energy
This can speed up a reaction without being used up.
When you mix an acid and a base together in equal amounts, they neutralize each other and create water and this common compound.
Salt
This famous law in physics states that if you heat a gas up, its volume gets larger (or its pressure increases).
Charles's Law
This liquid is known as the "universal solvent" because it dissolves more substances than any other liquid.
water
This term refers to a substance that speeds up a chemical reaction by lowering the required activation energy without being consumed.
Catalyst
Breaking a solid into smaller pieces increases this and speeds up reactions.
Surface Area
This theory states that an acid produces hydrogen ions in water, while a base produces hydroxide ions.
Arrhenius Theory
This upward force exerted by a liquid allows objects to float in it.
bouyancy
To speed up the rate at which a solid solute dissolves in a liquid, you can do this to the mixture.
stir
The Law of Conservation of Energy states that energy cannot be created or destroyed; it can only be transformed from one form to this concept.
Transferred
This happens when particles hit each other to start a reaction.
A Collision
According to the Bronsted-Lowry definition, an acid is a proton donor, and a base is this.
Proton Acceptor