Show:
Lab Report
Equipment
Units
Miscellaneous I
Properties and changes in matter
100
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

when they come in contact, heat is transferred from water vapor to a cold glass, the temperature of the glass increases and the temperature of the water vapor decreases until it changes state

What is condensation?

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

the ratio of mass to volume; it stays constant for a substance regardless of how much you have unless the temperature changes

What is density?

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 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

heated gas molecules move faster and further apart, thereby expanding and pushing out on the sides of the container it is in, increasing the pressure

What is the effect of heat on a gas?

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

when heat is added, molecules of a solid vibrate faster in one place until they gain enough energy to start sliding past one another

What is melting?

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
the triple beam balance is used to find this quantity
What is mass?
500
g/mL or g/cm^3
What is the unit for density?
500
protons = 12 electrons = 12 neutrons = 12
What is are the subatomic particles in an atom of magnesium?
500

the density of n 20g object that displaces 5 mL of water

What is 4 g/mL?