Science & Engineering
The three main areas of physical science?
What are astronomy, physics, and chemistry
Scientists use this to describe something in the real world
What is a "model"
The smallest particle of an element
What is an "atom"
The ability of a substance to dissolve into another
What is "solubility"
A type of chemical compound that tastes sour, dissolves in water, and turns blue litmus paper red (pH is less than 7)
What is an "acid"
A statement that proposes a testable explanation for a natural phenomenon; the starting point for an experiment.
What is, "hypothesis"
A comparison of two numbers by using division
What is "ratio"
A substance that is made up of only one type of atom
What is an "element"
The amount of space taken up or occupied by a piece of matter
What is "volume"
A type of chemical compound that feels slippery, tastes bitter, dissolves in water, and turns blue litmus paper red (pH greater than 7)
What is a "base"
The use of scientific knowledge for practical purposes
What is "technology"
A system of units based on the metric system
What is "International System of Units" (SI)
The number of protons in an atom's nucleus
What is the "atomic number"
The resistance of a liquid to spreading out
What is "surface tension"
Systems where matter either can enter and leave, or cannot
Open and closed systems
What is "bias."
The base SI unit of mass
What is "kilogram"
Subatomic particles that have a positive charge, a negative charge, or are neutral
What are protons, electrons, and neutrons
Unable to undergo a chemical change
What is "inert"
The total amount of mass remains the same in a closed system, even with a physical or chemical change
What is "conservation of mass"
Information, or data, gathered through observation and conducting experiments
What is, "empirical evidence"
A variable that changes in response to another variable
What is a "dependent variable"
A chart that arranges all the known elements in order of increasing atomic number
What is "the periodic table"
Mixtures with different parts and properties vs. Mixtures with the same appearance and properties throughout
What is "heterogenous vs. homogenous"
The six phase changes that matter can undergo
What are melting, freezing, evaporation, condensation, sublimation, and deposition