Matter
Anything that has mass and volume
matter
What is the measurement of how much mass fits into a certain volume?
density
What is the smallest particle of an element that still has the same chemical property of the element?
atom
give me 2 examples of physical properties
color, hardness, texture, height
_______ evaporates, salt does not.
water
What is the amount of matter in an object?
mass
Can two objects that have the same volume have different densities? True or False?
true
this is a particle with no electrical charge
neutron
when a heated substance can not pass through something it is called a(n)...
insulator
two or more substances that are blended together but don't make a new substance
mixture
______is the amount of pull that gravity has on an object
weight
What is the ability of an object to float in a liquid or gas?
Buoyancy
True or false: Most atoms have the same number of protons as neutrons.
false, they have the same number of protons and electrons
List 3 of the elements the human body is made up of
oxygen, hydrogen, nitrogen, calcium, phosphorus, carbon
this is a mixture that has separate parts
heterogeneous
a ______ has a definite shape and takes up a definite amount of space
solid
this shows all the elements in an order from lowest to highest
Periodic Table
this is a particle with a negative charge
electron
What 3 ways are elements presented?
Think of what ways water can take form.
solid, liquid, gas
When using a screen to separate substances into different sizes what is that called?
Sifting
a _______ has no definite shape and doesn't take up a set amount of space
gas
These have some properties of metals and some properties of nonmetals.
Metalloids
this is a particle with a positive charge
proton
How many elements have scientists found?
more than 100
When a mixture separates into layers once they stand for a while, what are they called?
suspensions