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Matter and Energy
Table of Elements
Atoms and Elements
Chemical Reactions
Miscellaneous
100
Water evaporating from your skin.
What is a physical change?
100
The lightest element.
What is hydrogen?
100
These were the first people to think that matter wasn't continuous.
Who are Leucippus and Democritus?
100
The change in temperature an ice pack causes is due to this.
What is the emission or absorption of heat?
100
The abbreviations g, l, s, and aq all stand for these. (If you unabbreviated them, what would that collection be.)
What are the states of matter?
200
Cal and J.
What are units of energy?
200
Si
What is the abbreviation for silicon?
200
He discovered that electrons are negatively charged and much smaller and lighter than atoms.
Who is Thomson?
200
The formation of a gas due to a chemical reaction is called this.
What is a gas evolution reaction?
200
This is how the table of elements is organized.
What is in weight or natural or man made?
300
The appearance changes but composition stays the same.
What is a physical change?
300
I
What is the abbreviation for iodine?
300
When there is positive charge build up and negative charge build up, there is lightning. This is what the lightning is.
What is charge equalization?
300
Soap form these with pure water.
What are suds?
300
H20 is this. (Other than water.)
What is Di-hydrogen monoxide?
400
The shininess of silver.
What is a physical property?
400
7
What is the number for Nitrogen?
400
He casted the patronus to save Harry in book three.
Who is Severus Snape?
400
A precipitation reaction is this.
What is when a previously clear solution forms a solid?
400
The pressure our bodies are used to.
What is 1.0 atm?
500
Iron oxidation
What is a chemical change?
500
Md
What is the abbreviation for mendelevium?
500
Science is always useful in wars. The atomic bomb was first tried here. (Country)
What is the U.S.
500
If a compound does not dissolve in a particular liquid, it is this.
What is an insoluble?
500
The pressure in an average airplane at 33,00 ft.
What is less than 0.50 atm?