Periodic Table of Elements
Atoms
States of Matter
Vocabulary
Physical or Chemical Change?
100
This is the symbol for oxygen
What is O
100
This is the central core of an atom.
What is the nucleus.
100
A state of matter that has a definite shape and a definite volume.
What is a solid.
100

The tiny pieces that all matter, all the stuff in the world are made of.

What is atoms

100
Melting Ice
What is a physical change.
200
This is the symbol for carbon
What is C
200
These are the small particles in the nucleus of the atom, with no electrical charge.
What are neutrons.
200
A state of matter with no definite shape or volume.
What is a gas.
200

A process in which atoms rearrange to form new substances.

What is a chemical reaction? 

200
Combining vinegar and baking soda.
What is a chemical change.
300

This is the symbol for hydrogen  

What is H

300
These are the small, positively charged particles in the nucleus of an atom.
What are protons.
300
A state of matter that has no definite shape but has a definite volume.
What is a liquid.
300

A starting substance that is part of a chemical reaction.

What is a reactant

300
Baking a cake.
What is a chemical change.
400
This is the symbol for iron
What is Fe
400
These are the tiny, negatively charged particles that move around the nucleus of an atom.
What are electrons.
400
A gas-like state of matter consisting of a mixture of free electrons and atoms that are stripped of their electrons.
What is plasma.
400

This is a pure substance that cannot be broken down into any other substance by chemical or physical means.

What is an element.

400
Breaking eggs into a bowl.
What is physical change.
500
This is the symbol for potassium
What is K
500
When atoms combine, they form larger particles.
What are molecules.
500
This is when a solid goes straight to a gas.
What is sublimation.
500

An ending substance that is made during a chemical reaction.

What is a product.

500
Slicing bread, and then toasting it.
What is a physical and a chemical change.
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