Scientific Method Basics
an observation that involves numbers
What is Quantitative?
Situation:
"Molly wants to see which material--popsicle sticks or tooth picks--will build the strongest bridge".
What variable is the strength of the bridge?
What is the dependent variable?
the actual steps of your experiment are called
What is the procedure?
This will protect your eyes from chemicals and other objects.
What are safety goggles?
A good scientific question must be
What is testable/measurable?
an educated guess
What is a hypothesis?
Situation:
"Will my bananas turn brown quicker in a dark pantry or sitting out on the counter?"
Which variable is the location?
What is the independent variable?
The two words we need to include when writing a hypothesis
What is "if" and "then"?
A special way of seeing how a chemical or specimen smells
What is wafting?
Before beginning any lab you must
What is wait for directions from the teacher?
an observation that involves a description (looks)
What is qualitative?
Situation:
"Will warm or cold water freeze faster?"
Which variable is the type of liquid?
What is the constant/control variable?
"The grass was green and very tall." Is this a quantitative or qualitative observation
What is a qualitative observation?
The best way to keep long hair in a lab
What is tied back?
A scientist is looking at the shape of bacteria under a microscope. Name the skill the scientist is using.
What is an observation?
The step that involves putting all of your analyzed experiment data and previous research together. Also tells whether or not your hypothesis was valid or not.
What is the conclusion?
Situation:
"Do footballs made of leather or plastic last longer?"
What is the dependent variable?
What is how long it lasts?
Raul walks into his kitchen to find milk spilled all over the floor...He thinks his little brother was trying to get milk by himself. He is making an
What is inference?
Broken glassware, even chipped or cracked must be this.
What is reported to Mrs. Brown and not to be used?
Conclusions drawn from a scientific investigation must be based on
What is Evidence from the analyzed collected data
The step that includes looking over experimental data and creating graphs and tables of that data
What is analyze data?
Situation:
"Which material will keep heat in longer--metal or glass?"
What is the independent variable?
What is the material (metal/glass)?
Anne told us that her classroom was hot and stuffy during 2nd period. Anne was giving us her
What is an observation?
In the lab, this glassware will look the same
What is hot and cold glassware?
The closeness of a measurement to its true value is a measure of its
What is accuracy?