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What is the scientific method?
A step by step process to preform an experiment objectively.
How many steps are in the Scientific method?
6
What type of change occurs when the chemical and molecular identity are UNchanged
physical change
What is the 2nd step of the scientific method
Background research
What is the 5th step of the scientific method?
Analyze data / form a conclusion
What is a control variable
the things we keep the same
Is O2 a molecule, compound or element?
molecule and element
What are the 2 types of data we can collect in an experiment? What does each represent?
qualitative - observations
and quantitative - numbers
A wall being painted a new color is an example of what?
physical change
Combining baking soda and vinegar resulting in a gas being produced is an example of what?
chemical change.
What two words do we use to structure our hypothesis
if then
What is the first step of the scientific method?
ask a question
What is a subscript
the small number after an element noting how many atoms of that element are present.
what is a molecule?
2 or more atoms bonded together
What type of change occurs when you create a new substance?
chemical change
What is the 6th step of the scientific method?
communicate your findings.
What is a dependent variable
the things we measure
True or false - the atoms in a molecule have to be the same
false
What is the 3rd step of the scientific method?
Form a hypothesis
Is NaCl a molecule, compound or element?
molecule and compound
What is a coefficient
a large number before the element symbols noting how many molecules there are
What is a compound?
2 or more different atoms bonded together
What is the 4th step of the scientific methos
plan and conduct your research
What is a pure substance?
substance with a constant composition
What is an independent variable and how many can you have in each expierement?
the thing we change - 1