Scientific Method
What is the first step of the Scientific Method?
Research or observations or asking a question
After you make an observation and come up with a question you want to test, you have to state a ____________________.
Hypothesis
True or False: You should eat the food that has been in a lab tray after you have completed an experiment.
False: You should never eat food that has been in a lab tray as you don't know what was in the tray prior to your experiment.
One type of scientific tool to measure distance we've discussed in class.
ruler, meter stick
What is the sentence to help you remember the metric system prefixes?
King Henry Died Unusually Drinking Chocolate Milk
Describe the independent variable
The 1 thing I can change.
The one variable changed in an experiment
Describe the dependent variable.
The dependent variable is what happens as a result of the independent variable.
When finished with an experiment it is important to do what before leaving the classroom?
Clean up your entire lab station
One tool to measure mass
Electronic balance scale
What are all the abbreviations using the prefix deka-?
dam, daL, dag, dkm, dkL, dkg
What is the definition of hypothesis that we currently use?
A testable prediction
What three words should be used when creating a hypothesis?
If.....then.....because.....
You should wear this safety equipment when working with chemicals and or glass.
Safety goggles
One tool to measure volume.
graduated cylinder, beaker, erlenmeyer flask
How many grams are in 30 kg?
30,000g
In order for an experiment to be considered valid, what must you be able to do?
Repeat it
What method do we use to write a conclusion?
CER (Claim, Evidence, Reasoning)
What is the first thing you need to do to best safely complete an experiment?
Read/listen to the directions
A tool used to mix liquids or chemicals, but not used for accurate measurements.
test tube
How many liters are in 45,000 mL?
45L
After you have collected all of your data, in an experiment, you might create a graph. When using a graph the y-axis will show which variable?
The dependent variable as this is where you put the data (numbers) typically.
What should you do if you break glass during a lab?
When any accident occurs, no matter how minor, notify your teacher immediately. Then, listen to your teacher's directions and carry them out quickly.
Meter sticks measure in what label?
Graduated cylinders measure in what label?
Electronic balance scales measure in what label?
Answer all three for points
Meter sticks-meters/centimeters
Graduated cylinders-milliliters
Electronic balance scales-grams/kilograms
676,767 dg