"SI" Units
Scientists use this system to compare data and communicate about their scientific findings.
What is the International System of Units?
The numerical average of a set of data.
What is a mean?
The total energy of all the particles in an object.
What is thermal energy?
The measure of how much solute can dissolve in a solvent at a given temperature.
What is Solubility?
The transfer of thermal energy from a warmer object to a cooler object.
What is heat?
The measure of how much mass is in a given volume.
What is Density?
An approximation of a number based on reasonable assumptions.
What is an estimate?
All moving objects have this.
What is Kinetic Energy?
A mixture in which particles can be seen and easily separated by settling or filtration.
What is suspension?
The scale that most countries use today.
What is the Celsius scale?
____ is the measure of matter in an object.
____ is the measure of the force of gravity on an object.
____ is the amount of space taken up from an object or substance.
What are mass, weight, and volume?
This refers to how close a group of numbers are to each other.
What is Precision?
The coldest temperature possible.
What is Absolute Zero or Zero K?
The type of solution sand and water is.
What is Suspensions?
The type of ruler used to measure lengths smaller than a meter.
What is the Metric Ruler?
What is when the speed of molecules moving around changes?
When collecting data scientists use these four math skills.
What are estimation, accuracy, precision, and significant figures?
The three scales are used in our world today.
What are Fahrenheit, Celsius, and Kelvin Scale?
A mixture that has a lot of solute dissolved in the solvent.
What is a concentrated solution?
A mixture containing small, undissolved particles that do not settle out.
What is a colloid?
The 6 things scientists use SI units to measure.
What is length, mass, volume, density, temperature, and time?
If a scientist sees a data point that is different from the others, he or she will examine it for these.
What are errors?
The temperature that Absolute Zero is.
What is -273°C?
The three things a mixture can be classified by.
What are Solution, Colloid, or Suspension?
In a measurement it includes all digits measured exactly, plus one estimated digit.
What is Significant Figures?