Properties and changes
Classification
Atoms
Elements
Periodic table
100

An observable characteristic that does not change the substance

What is a physical property?

100

The way to categorize matter based on its composition

What is classification of matter?

100

Smallest unit of matter "building blocks" of matter

What is an atom?

100

The purest an item can be after it can't be purified any further

What is an element?

100

The vertical column in a periodic table

What is a group?

200

Some observations that can be made are heat, light and a change in odor

Chemical Change

200

Placing different types of metals together in a blast furnace to melt them and mix them together in a uniform appearance results in a ________ mixture

Homogeneous

200

The first two subatomic particles are found to have mass where as the third has no mass

Protons, neutrons and electrons

200

Protons and electrons for a neutral atom are found by looking at this

Atomic number

200

The horizontal rows in the periodic table

What is a period?

300

When you have mound of sand and you get it wet to make a cube, this is an example of _______ change

Physical

300

Anything that has mass and takes up space

What is matter?

300

A uniform composition throughout of one type of atom

What is an element?

300

Usually found abundantly in nature and something that we use to associate wealth and affection(love) in the form of a rock

What is carbon?

300

The thing that organizes the elements in a certain repeating pattern in a way that all people can recognize

What is a periodic table?

400

A type of characteristic that is observed through a reaction of sorts that does not allow the starting material to return to its original state

What is a chemical property?

400

A substance that looks uniform throughout and is made up of a repeating structure at the molecular level

What is a pure substance?

400

This is found by taking the mass of the protons and adding it to the mass of the neutrons

Atomic mass
400

A precious type of metal used in electronics, many have sought this rank out in games as well 

What is platinum?

400
The group of elements that are highly reactive in the first group

What are the alkali metals?

500

The overall change in this scenario: An ice cube put into a flask and heated to get to liquid form then has electricity ran through the water to form two gases, one is ignited and makes a pop sound

Chemical change
500

This is the level that cannot be seen by the naked eye, but at higher level of zoom achieved using specialized equipment

What is the molecular level?

500

This is the depiction that is more readily used to help explain the excitation of electrons and came before the quantum model

What is a Bohr Model?

500

It is a metal, located in the transition metal family mainly used in catalytic converters, dental fillings and fun fact, it is the metal that Tony Stark was looking for in his rockets when building his first arc reactor. It is valued at ~$1,000/oz.

What is palladium?

500

The group of elements that are reactive and tend to make negative ions in group 17

What are halogens?