The Atom
Scientist use this when making careful observations of matter
What is a model?
two or more alike atoms joined together
What is a molecule?
the measure of how compact matter is
What is density?
people can release and use this energy when they split an atoms nucleus?
What is nuclear?
cutting paper, dissolving sugar, and bending paper are examples of what?
If an atom were the size of a baseball stadium, this would be the size of a pencil eraser.
What is the nucleus?
atomic number 10 on the periodic table
What is Neon?
when this is left outside too long, rust is formed
What is metal?
when you use a computer, each keystroke sends this kind of charge
What is electrical?
cutting hair causes this type of change
What is a Nuetron?
rusting is this type of change
What is chemical change?
what are the two types properties of matter?
What are chemical and physical properties?
this type of torch melts metal
What is acetylene?
what is a substance produced by a chemical reactant
What is a product?
what all matter is made of
What is an atom?
this substance consists of a single type of atom
What is element?
what are the three states of matter?
What are solid, liquid, and gas?
wood at the start of a chemical reaction is called this
What is a reactant?
this undergoes a chemical change when it rots (except for McDonalds hamburgers)
What is food?
positively charged particles in atoms
What are protons?
a group of chemical symbols and numbers that describes the type and number of elements present in a molecule
What is a chemical formula?
this allowed people to use their knowledge to invent vehicles that would allow to travel farther and faster than ever before
What is technology?
powerplants split the nucleus of what?
What is uranium?
in its solid form, dry ice turns to this?
What is carbon dioxide?