a prediction that tells the predicted relationship between the independent and dependent variable and provides a scientific reason
What is a hypothesis?
100
This is used to accurately measure volume
What is a graduated cylinder?
100
grams or kilograms
What is the unit for mass?
100
the smallest unit of an element
What is an atom?
100
a temporary magnet made by wrapping a wire around an iron core and connecting it to an electric current
What is an electromagnet?
200
a variable that is measured during an investigation, sometimes called a responding variable
What is the dependent variable?
200
This glass or pyrex cup is not very accurate for measuring volume, but useful for rough estimations.
What is a beaker?
200
meters
What is SI unit for measuring distance/length?
200
of combination of different compounds and molecules that do not combine chemically
What is a mixture?
200
a continuous flow of electrons
What is current electricity?
300
a variable that must be kept the same so that the investigation tests the relationship stated in the hypothesis
What is a control variable?
300
used to find mass
What is a (triple beam/digital) balance?
300
mL or cm^3
What is the unit for volume?
300
a short hand way of writing a compound by telling the element symbols and ratio of the elements
What is a chemical formula?
300
it can be found by dividing voltage by resistance
What is current?
400
this part of the lab report is needed in both the hypothesis and in the conclusion to evaluate the results
What is the background information/research?
400
a way to find volume of an irregular shape by putting water in a graduated cylinder, finding the original volume, adding the shape and finding the ending volume. then finding the difference
What is the displacement method?
400
degrees Celsius or Kelvin
What is the unit to measure temperature?
400
atoms of the same element with a different number of neutrons; i.e. c-12 has 6 neutrons, c-14 has 8 neutrons;
What is an isotope?
400
A hair dryer with 20 ohms of resistance is plugged into the wall outlet with 120 v. What is the current?
What is 6 amps?
500
one type of data describes the color, shape, odor, etc and the other type of data is numerical telling things like temperature, volume, and mass
What is the difference between quantitative and qualitative data?
500
equipment needed to find density of an irregularly shaped, small object
What are a graduated cylinder and a balance?
500
g/mL or g/cm^3
What is the unit for density?
500
protons = 11
electrons = 11
neutrons = 12
How many of each type of subatomic particles are in an atom of sodium?
500
If one light goes out, then all the lights in the circuit will go out in this circuit.