Name That Matter!
This is the amount of matter in a substance.
What is mass?
A change that does NOT change a substance's composition is called this.
What is a physical change?
This is the number of protons in the nucleus of an atom.
What is the atomic number?
This is the amount of space an object takes up.
What is volume?
A change that forms one or more new substances is called this.
What is a chemical change?
These are the electrons in the outermost shell of an atom.
What are valence electrons?
This describes the relationship between an object's mass and its volume.
What is density?
A property that can be observed or measured without changing the kind of matter is called this.
What is a physical property?
The horizontal rows on the periodic table are called this.
What are periods?
This is the temperature at which a solid changes into a liquid.
What is the melting point?
This type of property tells whether substances react or do not react chemically with one another.
What is a chemical property?
The columns on the periodic table are called this.
What are groups?
This is the temperature at which a liquid changes into a gas.
What is boiling point?
A student observes a substance changing and notices that a new substance has formed. Is this a physical or chemical change?
What is a chemical change?
A mixture that is uniform and whose individual particles cannot be seen is called this.
What is a homogeneous mixture?