Physical Science Midterm Exam Practice

When working in the lab when is okay to remove your goggles

• when my group has finished their experiment
• before returning glassware to its proper location
• when I need to read the hand out
• none of these are correct

Since  laboratory glassware, like beakers, for example, present no different hazard than beverage glasses I use at home, googles are unnecessary while using or handling glass at school 

• False
• True

The scientific method is an organized and __________ approach to solving research problems.

• hypothetical
• dependent
• independent
• systematic

Which is the correct procedural order of the six steps of the Scientific method.

• 1st analyze data, 2nd state the hypothesis, 3rd draw conclusions,  4th test the hypothesis, 5th state the problem, 6th gather information
• 1st gather information, 2nd analyze date, 3rd, state the hypothesis,4th dance on your head, 4th text your mother, 5th draw conclusions, 6th the hypothesis
• 1st gather information, 2nd state the problem,  3rd state the hypothesis, 4th test the hypothesis, 5th analyze data, 6th draw conclusions
• 1st gather information, 2n state the problem, 3rd draw conclusions, 4th test the hypothesis, 5th state the problem, 6th analyze data

Variables that are measured, that result from changes in another variable (treatment) , and get plotted on the y axis are called the _________variable.

• dependent
• constant
• independent
• control

Variables that a researcher changes in order to apply the treatment in an experiment and get plotted on the x axis are called the ____________ variable.

• control
• constant
• dependent
• independent

In designing an experiment all the variables except the___________ variable should be held constant.

• treatment or independent
• control
• constant
• dependent

In an experiment to determine if temp affects bacterial growth, which would be the dependent variable?

• changes in temperature
• species of bacteria
• growth of bacteria
• kind of agar (sugar) used to grow the bacteria

These symbols and values are stated correctly 
deci   d  1/10  0.1 ,10^-1 

• True
• False

These symbols and values are stated correctly 
centi, C,  0.001,    10^-3 

• True
• False