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Lab safety
Properties of matter
mixtures
Scientific method
percent error
100

What  should NOT be disposed of in regular trash?

Broken glass 

100

The density of an object is a ?

Physical property 

100

What is a substance that is dissolved in another substance?

Solute 

100

Dependent variable means

What is being measured 

100
The ratio of an error to an accepted value



Percent error 

200

what should yu do if you get a chemical in your eyes?

Rinse your eyes with water for at least 15 minutes

200
Anything that has mass and takes up space.


matter 

200

What is the simplest form that cannot be broken down to anything simpler?

Element

200

What is a factor that the experimenter has full control over and changes to see what happens?

Independent variable 

200

The difference between an experimental value and an accepted value

Error 

300

When should you begin cleaning up your lab station after an experiment?

As soon as you are done with your experiment

300

What is not a fluid form of matter?

Solids 

300

What is a mixture?

a combination of substances in which the atoms of the substance do not chemically combine

300

What is the purpose of the scientific method?


To solve problems and create experiments

300

A set of data are all close to each other, and they are close to the actual value.  This set of data can be described as...

both precise and accurate

400

When is it acceptable to taste or smell a chemical in the lab?

Never, tasting or smelling chemicals is strictly prohibited

400

Which state of matter has a fixed shape and volume and it's molecules move very slowly?

solid 

400

A combination of particles of one or more substance that are distributed uniformly throughout another substance is a/an

Solution 

400

What is the final step in the scientific method?

Write a conclusion about your results

400

Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds. what is the percent error.  

20%

500

When should you remove your safety goggles in the lab?

Never remove your safety goggles while in the lab

500

In which state does matter completely fill its closed container?

Gas 

500

How are mixtures and solutions different form each other?

the mixture combines physically and the solution is not easily separated

500

When graphing data, where do you place your independent variable?

X- axis 

500


Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?



67%