Vocabulary 2

Elements:a substance that cannot be broken down any further into anything simpler.





Atom:the smallest particle of an element that have the same chemical property as the element.





Nucleus:an atom dense center,where most of its mass is.





Electrons:a negatively charge particle that moves around an atom,s nucleus.





Proton:a possitively charge particle inside an atoms nucleus.





Neutron:a particle with no charge inside a atoms nucleus





Atomic Number:the number ofd protons in an atom.





Metal:any of a group of elements that cunduct heat and electricity,is shiny and bendable.

Vocabulary 1

Matter:any solid,liquid,or gas.





Mass:the amount ofmatter in an object.





Volume:the amoun of space an object takes up.





Density.the amount of mass in a certain volume of material.





Physical Property:a property that can be observed without changing the identity of a substace.





Physical Change:a change in size, shape, or state whithout forming a new substance.




Solution:a mixture of one substance dissolved in another so that the property are the same througouth.





Chemical Change:a change in matter that produce a new substance with different properties from the original.