Elements and compounds and mixtures, Oh My!
This is a pure substance made up of only one kind of atom.
What is an element?
Boiling point, solubility, color, taste and density are all examples of this kind of property.
What is a physical property?
This state of matter has a definite shape and definite volume.
This change happens when a solid turns into a liquid
What is melting?
All matter is made up of these tiny building blocks that are in constant motion.
What are atoms?
When two or more elements are chemically combined in a fixed ratio, they form this kind of substance.
This type of property describes how a substance changes into a new substance with different properties.
What is a chemical property?
This state of matter takes the shape of its container but has a definite volume.
What is a liquid?
When a liquid cools and turns into a solid, it’s undergoing this change.
What is freezing?
The faster particles move, the higher this property becomes.
What is temperature?
This is a combination of two or more substances that are not chemically combined and can be separated by physical means.
What is a mixture?
Color, density, and melting point are all examples of this type of property.
What are physical properties?
This state of matter has neither a definite shape nor a definite volume and spreads out to fill its container.
What is a gas?
This process turns a liquid into a gas when heat energy is added.
What is vaporization?
According to the second tenet of Kinetic Molecular Theory, all particles are experiencing this kind of motion.
What is constant random motion?
Natural peanut butter, a bag of trail mix, and soil are all examples of this type of mixture where the parts are visibly different.
What is a heterogenous mixture?
Flammability and reactivity with acid are examples of this type of property.
What are chemical properties?
In this state of matter, particles are so energized that electrons break free, creating a soup of charged particles.
What is a plasma?
When a gas loses energy and becomes a liquid again, it’s called this
What is condensation?
This term describes how tightly packed the particles of a substance are.
What is density?
This type of mixture looks the same throughout, like salt water or air.
The production of a gas, color change, formation of a precipitate, or release of energy indicate this.
What are signs of a chemical change?
When a solid changes directly into a gas without becoming a liquid first, the process is called this.
What is sublimation?
This direct change from gas to solid skips the liquid phase entirely.
What is deposition?
When energy is added to matter, the particles move faster and spread apart—this causes the matter to do this.
What is expand?