Lab safety
What should NOT be disposed of in regular trash?
Broken glass
The density of an object is a ?
Physical property
What is a substance that is dissolved in another substance?
Solute
Dependent variable means
What is being measured
Percent error
what should yu do if you get a chemical in your eyes?
Rinse your eyes with water for at least 15 minutes
matter
What is the simplest form that cannot be broken down to anything simpler?
Element
What is a factor that the experimenter has full control over and changes to see what happens?
Independent variable
The difference between an experimental value and an accepted value
Error
When should you begin cleaning up your lab station after an experiment?
As soon as you are done with your experiment
What is not a fluid form of matter?
Solids
What is a mixture?
a combination of substances in which the atoms of the substance do not chemically combine
What is the purpose of the scientific method?
To solve problems and create experiments
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
When is it acceptable to taste or smell a chemical in the lab?
Never, tasting or smelling chemicals is strictly prohibited
Which state of matter has a fixed shape and volume and it's molecules move very slowly?
solid
A combination of particles of one or more substance that are distributed uniformly throughout another substance is a/an
Solution
What is the final step in the scientific method?
Write a conclusion about your results
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%
When should you remove your safety goggles in the lab?
Never remove your safety goggles while in the lab
In which state does matter completely fill its closed container?
Gas
How are mixtures and solutions different form each other?
the mixture combines physically and the solution is not easily separated
When graphing data, where do you place your independent variable?
X- axis
67%