Describing
Everything is made up of ____
matter
How can we tell one element apart from another?
elements are identified by their specific physical and chemical properties
Weight is dependant on ____
Gravity
Sugar dissolved into water is a physical change
T or F
True
Define Matter
Anything that has mass and takes up space
Chemical change is when is when a ____ _____ is formed
new substance
All matter in the universe is made of different ______.
elements
Name the SI unit of mass
kilogram
A new substance produced from a chemical change has the same properties as the substances used to create it.
T or F
False
What is the study of matter and how matter changes?
Chemistry
Every form of matter has two kinds of properties- What are they?
Physical properties and Chemical Properties
What type of mixture is this?
Heterogenous mixture
Mass/Volume = ______
Density
Every chemical and physical change in matter includes a change in ____
energy
Define Chemical Bond
is a force of attraction between two atoms = when atoms combine
a _____ is a single kind of matter that is pure - ALWAYS has a specific makeup, or composition
substance
What is a molecule?
a group of two or more atoms held together by a chemical bond
What measurements are needed to find the volume of the classroom?
length X width X height
Endothermic
Chemical Energy
Name 3 physical properties of the Jello
Red, solid, smooth, Sweet, etc.
distillation, evaporation, filtration, and magnetic attraction
The mysterious metal we found has a mass of 132 g and a volume of 16.7 cm^3. What metal did we find?
lead = 11.3 g/cm^3
iron = 7.9 g/cm^3
zinc = 7.1 g/cm^3
iron
Matter is not created or destroyed in any chemical or physical change is Defined as _______
the Law of Conservation of Mass
What is Thermal energy?
the total energy of the motion of all of the particles in an object