Vocab
How closely packed an object’s particles are
density
What are physical properties?
Properties that can be measured without changing the material.
TRUE or FALSE
chemical properties change the matter when observed/measured
TRUE
What is an element?
A material that cannot be broken down into anything simpler
An object’s resistance to sinking
buouyancy
What are the 3 states of matter?
solid, liquid, gas
What is 1 example of a chemical property?
Ability to kill bacteria, ability to burn, and acidity, change when heated
What is an atom?
The smallest unit of an element with the properties of that element
The amount of matter in an object
Mass
Which state of matter has NO shape or volume?
gas
What does combustible mean?
the ability to burn
What is a molecule?
Particles with more than one atom joined together.
Anything that takes up space and has mass
Matter
What is the opposite force of buoynacy?
Buoyance pushes UP
gravity
What does corrosion mean?
Rusted or tarnished
Which 2 parts of an atom are in the nucleus?
protons and neutrons
What is the difference between physical and chemical properties?
physical= observed/measured without changing object
chemical= changes object
What are 3 physical properties?
mass, weight, volume, density, buouyancy, solubility, conductivity, flexible, elastic, hardness, magnetism, reflectivity, texture, shape, color, size, states of matter
What is a chemical property of metal?
it can rust
What are the 3 parts of an atom and their charges?
proton= positive
neutron= neutral/no charge
electron= negative