Show:
States
Changing States
Water
Energy
Grab Bag!
100
This state has a definite shape and volume
What is a solid
100
Changing from a solid to a liquid
What is melting
100
Ice (frozen water) is a __________________ solid
What is crystalline
100
The energy stored in the bonds between atoms
What is chemical energy
100
This law states that matter is neither created nor destroyed
What is the law of conservation of mass
200
This state has no definite shape or volume
What is a gas
200
Changing from a liquid to a solid
What is freezing
200
What we call water in gas form
What is water vapor
200
When you jump into cold water, does thermal energy transfer to the water or to you?
To the water! The water is colder than you and, when you jump in, you get colder because you transfer some of your heat to the water
200
The variable that you change in a scientific experiment?
What is the independent variable
300
This state has a definite volume but no shape
What is a liquid
300
Changing from a liquid to a gas
What is vaporization
300
When liquid water evaporates, the molecules __gain/lose___ thermal energy
What is gain
300
When a substance vaporizes, does it gain or lose thermal energy?
It gains! The particles gain energy and move faster and farther away from each other
300
Matter is anything that....
Has mass and takes up space
400
This state of matter is so hot that even the subatomic particles split apart
What is plasma
400
Changing from a gas to a solid
What is condensation
400
Where does the dew on grass come from?
Warmer evening air holds more water particles. These particles condense (and sometimes freeze) overnight
400
When a substance condenses, does it have more or less kinetic energy?
Kinetic energy is movement. Particles in a solid move less and so have less kinetic energy
400
What should you see in a negative control?
No results!
500
The state of matter where the particles are in regular, repeating arrangements
What is a crystalline solid
500
Changing from solid to gas
What is sublimation
500
Ice is __less/more__ dense than water
What is less
500
When is the kinetic energy of a molecule equal to 0
At absolute zero (0 degrees Kelvin)
500
What is science?
A bias, nonlinear process we use to describe the natural world