Science Class
Chemistry of Life Notes
Questions:
Name: _________________
Date : _________________
Period : ________________
Notes:
Chemistry words we need to know:
1. Matter:
ƒ Everything in the universe is made of _______________ .
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Everything that has ____________ takes up ______________ .
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All the different _________________________________ .
2. Atom:
ƒ _________________ are the simplest and
_________________________________________ .
ƒ
There are _________________________________ .
3. Element:
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Each different kind of _________ is called an
________________. (Examples: gold, silver, oxygen)
ƒ __________ kinds of ________________ elements/atoms.
(Found in the earth’s crust.)
ƒ
__________ kinds of __________________ elements.
(Made in a lab setting.)
6 Common elements you know:
1.
4.
2.
5.
3.
6.
When atoms bond or combine chemically, they make a compound.
4. Compound:
ƒ Different _______ combine together to make ______________ .
ƒ The ____________ are _______________ held together and form
something ______________ .
ƒ When the atoms make a compound, something ________ is made.
A better way to say this is:
_______________________________________
ƒ
Examples:
1. Water is a compound. It is made of the elements hydrogen and
oxygen.
Oxygen is a ______________ hydrogen is a _____________ .
Oxygen bonded to hydrogen makes a ___________________ .
2. Salt is a compound of sodium and chlorine. Salt is nothing like
sodium and chlorine!
That is because ______________ has __________________.
The old properties are ______________when the atoms combine!
5. Molecule:
ƒ _____________ bonded together are also called molecules.
ƒ _____________ is the smallest amount of that substance that can
______________ and still be that substance.
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Examples:
1. ___________ is the formula for water. It is one molecule of
water.
2. ___________ is also the formula for water, but it is 8 molecules
of water.
The number in front tells you
______________________________________________ .
The number that comes after a symbol tells you
________________________________________________ .
Summary:
Write a short story to a 4th grader that would help them understand the important chemicals of life
(CHONPS) and the important words for chemistry.
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