States of Matter
What are the 3 states of matter?
Solid, Liquid, Gas
What is boiling point?
boils and turns to a gas.
What is density?
a comparison of mass to its volume
Safety rules when measuring temperature?
don't switch between hot and cold quickly
How are particles arranged in a solid, liquid and gas?
packed closer together and vibrating.
farther apart and sliding past one another
very far apart and not close at all to touching but vibrating quickly.
What degrees celcius is freezing?
0
Measurment that is used around the world?
SI units
What happens during a phase change?
particles spread out or closer together, more or less attractive, slower or faster moving
In what state are particles the most attracted to one another?
solid
When a pond freezes why does aquatic life not die?
insulating layer of ice
Solid water density is less/ more than liquid form.
less
pour together and see which one floats or sinks
Particles move faster or slower when you take away heat?
slower
What is melting point?
point at which solid melts to a liquid.
How do we measure volume?
mL
What is mass?
matter in an object
What are the 5 physical characteristics of matter?
compressibility, density, volume, mass, state
How do you use a liquid thermometer?
the termperature rises liquid goes up the straw. anf vice versa
How do we measure density?
g, kg, balance scales, floating or sinking.
What state of matter is easiest to compress? Why?
gas, particles are farthest apart.