Matter Matter Everywhere
The Law of Conservation of Matter
What is matter cannot be created or destroyed?
The positive particle in the nucleus of an atom.
What is a proton?
Vertical columns on the periodic table.
What are groups / families?
The energy of moving objects.
What is kinetic energy?
The Law of Conservation of Energy.
What is energy can not be created or destroyed?
A change that occurs that does NOT change the identity of the substance.
What is a physical change?
The subatomic particle found in a cloud surrounding the nucleus.
What is an electron?
Put in rows according to atomic number.
What are elements on the periodic table?
Stored energy
What is potential energy?
The energy transformations when you turn on a light bulb.
What is electrical to light & heat?
Burning wood, digesting food, baking soda reacting with vinegar, milk souring, bread dough rising
What are 3 examples of a chemical change?
One is when any two or more atoms are bonded together, but the other is when there are two or more DIFFERENT atoms bonded together.
What is the difference between a molecule and a compound?
Often called the "Father of the Periodic Table of Elements".
Who is Dimitri Mendeleev?
The ability to do work.
What is energy?
Hot water, heat from the sun, body heat.
What are examples of thermal energy?
A type of substance cannot be broken down into other substances without changing its chemical identity.
What is a pure substance?
Bond holding atoms together in a molecule.
What is a chemical bond?
In a chemical reaction, this number comes before a chemical symbol.
What is the Coefficient?
An object has 100% of this at rest on the top of a hill.
What is potential energy?
The energy transformations used to ride a bicycle (all of them!)
What is light (sunlight) to chemical (food) to mechanical / kinetic (moving the bike)?
One is the amount of matter that an object is made of. The other is the force with which gravity pulls on the matter.
What are mass & weight?
O2, CO2, NaCl
What are three examples of a molecule?
It is the same as the atomic mass number - the atomic number.
What is the number of neutrons?
This increases when both mass and velocity increase.
What is kinetic energy?
Fill in the blanks:
Because this person is on the diving board above the ground, they have __________ potential energy. The diving board has bent under their weight and will spring back so it is an example of _______ potential energy.
What are gravitational & elastic?