Show:
Compounds & Elements
Vocabulary
Chemical vs. Physical
States of Matter
Classmate Questions
100
Simplest form of a substance.
What is an Element?
100
When this occurs, matter keeps the same chemical properties.
What is physical change?
100
A change in which matter keeps the same chemical properties.
What is physical change?
100
In most solids, these get a little farther apart when they melt.
What is molecules?
100
This has a melting point of 3410 degrees Celsius.
What is Tungsten?
200
Two or more elements combined chemically, that form a new substance with new properties
What is a Compound?
200
When one kind of matter changes into a different kind of matter with different properties.
What is chemical change?
200
Change of state, shape or form are examples of this
What is a physical change?
200
This has its own shape and its volume does not change.
What are solids?
200
A special kind of mixture in which a substance is dissolved.
What is a solution?
300
Base particle of an element.
What is an atom?
300
This takes place when particles leave a liquid and become a gas.
What is evaporation?
300
A change in matter that causes heat, light, sound, and fizzing.
What is chemical change?
300
These do not affect one another unless they collide.
What are gas particles?
300
It is a result of molecules bumping into each other.
What is a chemical reaction?
400
Shows the elements in the compound and the ratio of atoms.
What is the chemical formula?
400
condensation
What occurs when a gas turns into a liquid?
400
Compounds undergo this type of change(s).
What is chemical and physical changes?
400
This physical property can help identify a material.
What is melting temperature?
400
It is 7,918 miles in diameter.
What is the Earth?
500
Force of attraction between two atoms
What is a chemical bond?
500
This shows what happens during a chemical reaction.
What is chemical equation?
500
Every chemical or physical change requires a change in this
What is energy?
500
The temperature at which a liquid turns into a solid.
What is freezing point?
500
Its average speed is 25 kilometers per second.
What are asteroids?