Properties and Changes
Atomic Theory
Element, Compound, Mixture
Periodic Table
Random Questions
100

Flammability is an example of this

What is a chemical property?

100

This particle is the smallest in the atom. 

What is the electron? 

100

Gold is an example of this

What is an element?  

100

The periodic table is an organized list of these.  

What are elements?  

100

This is your favorite class

What is Mr. Barnes' science class? 

200

Crushing chalk into dust

What is an example of a physical change

200

These particles make up the nucleus of an atom.

What are the protons and neutrons?

200

Water is an example of this

What is a compound

200

This is the vertical rows on the periodic table where all elements have similar traits.  

What is the group?  

200

This is the particle in the atom with a negative charge. 

What is an electron?

300

When two substances combine by creating a chemical bond they go through this.  

What is a chemical change?  

300

This Greek word, meaning "uncuttable" is where we get the modern day word atom.  

What atomos
300

These are 3 examples of elements

What are ...

300

This man created the basis of the periodic table.  

Who is Mendeleev?  

300

These are three examples of compounds

What are ...

400

This is required for water to go through a chemical change.  

Why do the hydrogen and oxygen break their chemical bond? 

400

This scientist determined that electrons had a specific and structured orbit based on energy levels.  

Who is Bohr?
400

Iron is an example of this

What is a homogeneous mixture?

400

This is the atomic mass of an atom.  

What is the average mass of all isotopes of an element?  

400

Picture B is an example of this

What is a physical change.  

500

This is an example of something that goes through both a chemical and a physical change.  

What is a candle (or something else that fits)?

500

Rutherford used this to discover the nucleus of an atom

What is the gold foil experiment?  

500

Picture A is an example of this

What is a Mixture of Compounds
500

This element is the smallest and 1st on the periodic table. 

What is hydrogen? 

500

This is a description of how Dalton's atomic model looks

What is a sooth, round orb, like a billiards ball.