Atoms
What part of the atom has a positive charge?
protons
What is a compound?
made up of two or more different elements
During a phase change what happens? what is either absorbed or released?
heat
What is on the periodic table?
elements
what are the four states of matter?
Solid, liquid, gas, plasma
What part of the atom has no charge?
neutron
Which of the following is a compound?
oxygen, sugar, trail mix
sugar
How is the Periodic Table organized?
by atomic number
When water boils what does it change into?
gas
What part of the atom has a negative charge?
electron
What is the smallest?
An atom
An ant
A penny
an atom
What are metals? Characteristics of metals
shiny, good conductors, flexible
When a lake freezes what change did it undergo?
liquid to solid
What is it called when you put together a group of the same atoms?
element
What are the 3 main regions on the Periodic Table?
One is metal. What are the other two?
metalloid and nonmetal
What is evaporation?
liquid to a gas
What is the chart called where all the elements are organized?
Periodic Table
The nucleus is made up of what two things?
protons and neutrons
compound
What must occur to change a gas to a solid?
deposition
slow down molecules, release heat