Random
What substance is the lake on Titan made of?
What is methane
_____ is the relative size of things.
What is scale.
If a puddle on the ground evaporates, it changes from a liquid to a _______ .
What causes a substance to change states?
What is: an energy transfer
A substance that changes states is said to have undergone a ______ _____ .
What is a phase change.
What is the term used to describe how molecules "dance" around each other?
What is freedom of movement.
Macroscale changes can be viewed with a _______ ________ .
What is naked eye.
What causes a substance to change states from a solid to a liquid?
What is: energy being transferred in (heat is generated)
What is another phrase for water in a gas state?
What is water vapor.
In which state do molecule move around each other?
What is a liquid.
What is the state of a substance that can be described by the following appearance?
-flows
-stays at the bottom of the container
-takes the shape of the container
What is a liquid.
What causes a substance to change states from a gas to a liquid?
What is: energy being transferred out (loss of heat)
What is the energy that an object has because it is moving?
What is: kinetic energy
In the gas state, how do the molecules move?
What are the appearance features of a gas?
What is:
-fills container-has no visible shape
What a common measurement that scientists use to determine the amount of energy in a substance?
What is: temperature
What is Mr. Cetani's favorite golfer?
Who is: Tiger Woods
Which of the following claims are incorrect:
-Molecules in a substance disappear or no longer exist when a substance changes states.
-Molecules in a substance move differently when a substance changes states.
-Molecules in a substance change into a new kind of molecule during a change in state.
What are:
-Molecules in a substance disappear or no longer exist when a substance changes states.
-Molecules in a substance change into a new kind of molecule during a change in state.
During the winter months in upstate New York, what happens to Niagara Falls?
What is: it partially freezes
When the speed of the molecules in a substance increases/decreases to a certain point, what can happen?