Matter Matters
The 3 basic states of matter.
What are solid, liquid, and gas?
The smallest chemical unit of matter.
What is an atom?
Atoms that have the same number of protons.
What are elements?
A substance that contains different compounds and/or elements.
What is a mixture?
Large molecules made up of smaller chemicals called monomers, linked together in the same way that a train is linked together.
What are polymers?
The state of matter changes when ________ is added to it.
What is heat?
Negatively charged particles of atoms.
What are electrons?
The number above the symbol (letters) in the periodic table of the elements that tells the number of protons and elements has.
What is the atomic number?
True or False: A compound is made up of one or more elements that are chemically bonded together and can only be separated using chemical means.
What is true?
True or False: DNA is not a polymer.
What is false?
The temperature at which a solid becomes a liquid.
What is its melting point?
The collective name of electrons, protons, and neutrons; because they are smaller than atoms.
What are subatomic particles?
The number of protons that Holmium (Ho; metal) has.
(use the periodic table)
What is 67?
What type of change does lemonade represent?
What is a physical change?
Name a synthetic polymer.
What is ____________ ?
ex. plastic, rubber
The temperature at which a liquid becomes a gas.
What is its boiling point?
Protons and neutrons are found in this part of the atom.
What is the nucleus?
What is a molecule?
Physical or Chemical Change: Wood burning in a campfire
What is a chemical change?
Proteins are polymers in living organisms made up of chemicals called __________.
What are amino acids?
The temperature at which a liquid becomes a solid.
What is its freezing point?
The name of the simplified model of an atom. (Named after the scientist who created it)
What is the Bohr Model?
Two atoms sharing a pair of electrons is called ______ bonding.
What is covalent?
Write an example of a chemical formula.
What is _____________?
ex. H2O, CO2
There are very few natural processes that can break down plastic. Name one of the two mentioned in your textbook.
What is sunlight and living organisms?