16 questions
When gaseous water molecules lose __________, they become a liquid.
energy
heat
motion
all of the above
Contrails is short for what?
Condensation trails
Cooperation trails
Controlled trails
airplane clouds
How does a thermometer work? As the temperature increases the liquid in the thermometer takes up:
more space
less space
stays the same
As temperature increases, what happens to volume?
it increases
it decreases
it stays the same
A pot of water is placed on a hot stove. Small bubbles begin to appear at the bottom of the pot. The bubbles rise to the surface of the water and seem to pop or disappear. What are the bubbles made of?
Air
Gaseous oxygen and hydrogen
Gaseous water/water vapor
None of the above
What happens to the water molecules when water at 24º C is cooled to 0º C and freezes?
The molecules become less organized
The molecules move faster
The molecules break apart
The molecules move more slowly.
When water forms outside of a can of soda, the liquid is coming from
Inside the can
Water vapor in the air
Define sublimation.
solid to liquid
solid to gas
gas to solid
liquid to gas
The average speed of molecules in a substance is called
thermodynamics
heat
temperature
The elements argon, xenon, neon, and helium are in the same
period
family
How many protons, electrons, and neutrons are in the element silver?
47 protons, 46 electrons, 61 neutrons
61 protons, 46 electrons, 61 neutrons
47 protons, 47 electrons, 61 neutrons
Every element on the periodic table shows specific patterns of light. The pattern for each gas is a unique property of that element. What is this property called?
ROYGBIV
elemental lights
lights from excited electrons
emission spectrum
Matter takes up space. What property of matter is this?
mass
volume
density
melting point
You made a model of air as pieces or particles and then showed the differences between expanded, compressed, and normal. What was this model called?
Circle Models
Particle Models
Practical Models
What state of matter does a material have to be in for you to smell it?_
solid
liquid
gas
plasma
Room 159 scientists are
Respectful
Responsible
Resourceful
All of the above!