States of Matter
Which two states of matter take the shape of their container?
Liquid and Gas
Name 3 types of energy we have talked about in class.
Thermal
Kinetic
Potential
A substance changing from a _________ to a __________ is caused because of melting.
Solid to a liquid
Snow forms in clouds because water vapor changes directly to ice. This is an example of _____.
Deposition
What is one example of a physical change and explain why.
Answers may vary
Draw what the atoms look like in a solid
Example: Particles should be drawn close together
A change in the state of matter is caused if enough _____ is added to or removed from an object.
Thermal Energy
A substance turns from a liquid to a solid because heat is being removed. This process is called what?
FREEZING
During a hot shower, water vapor fogs up the cooler mirror when it turns to water. This is an example of _____.
Condensation
What is the definition of matter?
Anything that has mass and volume.
Draw what the atoms look like in a gas
Example: Particles should be spread out throughout the container
Adding thermal energy to a cup of water can cause the _____.
a. atoms to move faster
b. atoms to get farther apart
c. atoms to move faster or get farther apart or both
d. atoms to remain constant
c. atoms to move faster or get farther apart or both
Vaporization, including boiling and evaporation, are processes that cause a substance to change from a ________ to a __________.
Liquid to a gas
To get from a solid to a liquid, does thermal energy have to be added or removed?
thermal energy has to be added
What is the definition of THERMAL ENERGY
Energy due to the motion of atoms
At which temperature would the particles of a H2O be moving the fastest?
a. 40 degrees Celsius
b. 50 degrees Celsius
c. 55 degrees Celsius
d. 45 degrees Celsius
C. 55 degrees Celsius (the hotter the temperature, the faster the atoms are moving)
Adding or removing thermal energy causes a change in _________________.
STATE
Marco put a pot of water on the stove to boil eggs. After a few minutes, all the water was gone. This is an example of __________________.
a. condensation
b. deposition
c. sublimation
d. evaporation
D. EVAPORATION
When changing from a gas to a liquid, are the particles speeding up or slowing down?
Slowing down
Give an example of chemical change and explain why.
answers may very
Draw what the atoms look like in a liquid
Example: Particles should be spread out a little bit throughout the bottom of the container
Atom motion in ice is _____________ than particle motion in water.
SLOWER
Dry ice is a solid that changes directly to a gas when thermal energy is added. This is an example of _____.
Sublimation
Name all 3 state changes that result from LOSING THERMAL ENERGY
FREEZING
CONDENSATION
DEPOSITION
Name all 3 state changes that result from GAINING THERMAL ENERGY
MELTING
EVAPORATING
SUBLIMATING