Topic 1
The study of matter and how it changes
Chemistry
What is the formula to calculate Density?
D = M/V
Tearing Paper
Physical Change
What is a group of two or more atoms held together by chemical bonds? (This can be a single element or multiple)
Molecule
made up of two or more substances that are together in the same place, but their atoms are not chemically bonded
What is a Mixture
Substances that are made of one type of atom
Element
If a substance has a volume of 2 mL and a mass of 10 g, what is the density?
10 g/mL
Roasting a marshmallow
Chemical Change
The amount of space that matter takes up is what?
Volume
The basic unit from which all matter is made.
Atom
The practice of separating a mixture by boiling the liquid
Distillation
When given density and volume and using the density formula, how do you find the mass of an object?
M= D*V
Rusting of a nail
Chemical change
Any kind of change to matter involves a change in
Energy
a force of attraction between two or more atoms
Chemical Bond
This type of mixture looks different throught
Heterogenous
If an object has a density of 10 g/mL and a volume of 2 mL, what is the mass?
20 g
Dissolving sugar in hot water
Physical change
If gravity were to increase, what else would increase?
Weight
A measure of the force of gravity on an object.
Weight
This type of mixture looks the same throughout
Homogenous
If given the mass and density of an object, how do you find volume?
V = M/D
Liquid water evaporating.
Physical change
The amount of space that matter takes up is what?
Volume
What is a substance made of two or more elements that are chemically combined in a set ration?
Compound