matter
elements
changes
periodic table
potpourri
100
solid, liquid and gas
What are the 3 states of matter?
100
elements
What is a substance in simpliest form (can't be broken down physically or chemically into other substances)?
100
physical and chemical
What are the two types of changes?
100
over 100
About how many elements can be found on the periodic table?
100
fireworks
What is and example of a chemical change?
200
anything that has volume(takes of space) and has mass
What is matter?
200
electrons
What is the negatively charged part of the atom having the same number as the number of protons?
200
dissolving sugar in water
What is an example of a physical change?
200
nucleus
Where do the protons and neutrons hang out, giving an element it's mass?
200
melting point
What temperature changes a solid into a liquid?
300
solid
What is the substance of matter where molecules are packed tightly together in fixed positions?
300
2
What is the number of electrons that can be on the first energy ring?
300
liquid water , ice and water vapor
What is water in the different states of matter?
300
atomic number
What is the number of protons in its atoms?
300
atomic number
What is the number of protons in the nucleus? What can also be the number of electrons?
400
gas
What is matter when molecules move quickly and freely to fill space?
400
protons, neutrons and electrons
What are the subatomic particles of an atom?
400
vaporization
What is a liquid becoming a gas?
400
by the atomic number
How is the periodic table arranged?
400
thermal energy
What causes temperature of a substance to increase?
500
liquid
What is the state of a substance where molecules are tight together but can move somewhat to take the shape of any container?
500
mass number
What is the number of protons + the number of neutrons?
500
chemical change
What is a change that produces one or more new substances called?
500
mass number-atomic number
How do we find out the number of neutrons?
500
energy rings
Where is the volume of the atom and where the electrons stay?
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