Elements
What represents a element?
A letter and a number
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What are two types of mixtures?
Homogenous and Hetrogenous
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What is the basic building block of matter?
An atom
What does O stand for on the periodic table?
Oxygen
What is a pure substance that is composed of two or more atoms?
A compound
What is a pizza?
A mixture
How many steps are in the scientific method?
5
What is a subatomic particle that has a positive change?
A proton
What is a pure substance that cannot be changed into a simpler substance?
A element
What can be changed into simpler substances?
A compund
What can be seperated by physical means?
A mixture
What is the first step of the scientific method?
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What subatomic particle has a nuetral change>
Nuetron
What is the smallest unit of an element?
An atom
What does NA stand for on the periodic table?
Sodium
What is a mixture?
Physical combinations of two more different substances that have their own properties?
What is a question with a if than statemnt called?
A hypothesis
What subatomic particle has a negative change?
Electron
What is only composed of one type of atom?
An element
What does sodium and chorline make?
A compund or salt
Are mixtures on the periodic table?
No
What is the factor that is changed?
Independent Variable
What is anything that has mass and takes up space?
Matter