Lab Safety
What is not allowed in the lab to prevent accidents or injuries?
Horseplay, practical jokes, or pranks in the classroom
Whan are you are not allowed to use the restroom?
during the first and last 15 minutes of class
What is an observation?
use of senses to explain what is happening
What is the precision and accuracy for this dart board?
High precision and Low Accuracy
convert: .753 km = _____ m
753 meters
If a piece of equipment is not working properly, stop, turn it off, then?
notify the teacher
What is a hypothesis?
an educated guess
How many significant figures in 08002.507
What is 7
What measurement instrument is this?
a beaker
convert 300.784 l = ______ kl
.300784 kl
What should you do before you leave the science room you should clean your area?
put equipment away and wash your hands
Which area in grading is worth the most?
labs, projects, and presentations
The girl got dirty because she fell down. Is this an observation or inference?
Inference
What metric unit is used to measure time?
seconds
convert 57 cg = _____ g
.57 g
What should you do if you do not understand a direction or part of a laboratory procedure?
you should ask the teacher
What step does every scientific method begin with?
question/problem
How many significant figures are in this number 106.05 x 105 ?
5
What is the accuracy and precision for this?
Low Accuracy and Low Precision
convert: 789 mm = ______ m
7.89 m
After completing an experiment, how should chemical waste be disposed of?
dispose in designated container
List the 6 steps of the Scientific Method in order.
question/problem, research, hypothesis, experiment, analyze data, conclusion
24 months = ______
2 years
What unit would you use to measure the mass of an elephant?
kilograms
convert: 7687.2 cg = ______kg
.076872 kg