Physical/Chemical Changes
This is when a substance or material only changes its appearance and does not change its chemical composition
What is physical change?
This is another way to say "state of matter"
What is phase?
This is when a liquid turns into a solid
What is freezing?
This is the basic building block of all physical matter
What is an atom?
DOUBLE JEOPARDY!!
This is what density is mathematically equal to.
What is mass divided by volume?
In order to identify this reaction, you often observe an odor, color change, light or heat.
What is chemical change?
This phase has particles that are spread far apart and moving very quickly
What is a gas?
This is when a liquid turns into a gas.
What is evaporation?
DOUBLE JEOPARDY!!
These are unique types of atoms that are listed on a periodic table in every chemistry classroom.
What are elements?
This type of particle can be broken apart into a new substance by chemical means.
What is a compound?
DOUBLE JEOPARDY!!
This type of change occurs when solid ice melts into liquid water, and then evaporates as gaseous water vapor.
What is a physical change?
This phase usually only turns into a liquid, but on rare occasions will turn directly into a gas
What is a solid?
This is when a gas turns into a liquid.
What is condensation?
This is when every unit within a container is the same kind.
What is a pure substance?
This is a phenomenon at the molecular level where particles move faster as their temperature increases.
What is the kinetic molecular theory?
This type of change could include two liquids mixed together and shortly thereafter, fizzing and bubbling occurs.
What is a chemical change?
This phase takes the shape of its container and has fluid-like movement
What is a liquid?
DOUBLE JEOPARDY!!
This is when a solid turns directly into a gas.
What is sublimation?
This is when two or more atoms of different elements are stuck together
What is a compound?
In a heating curve, this is always increasing among particles and their movement.
What is potential energy?
This solid powder forms after mixing two liquids together and is a sign of a chemical change.
What is a precipitate?
DOUBLE JEOPARDY!!
This phase is only found in superheated matter where atoms form ionized gas particles
What is plasma?
This is when a gas turns directly into a solid.
What is deposition?
This is when you have multiple units of several atoms of different elements stuck together. Each unit is the same combination of these atoms.
What is a pure substance of a compound?
In a cooling curve, this is decreasing among particle movement UNLESS there is a phase change occurring.
What is kinetic energy?