found pollen particles were moving due to water particles striking them
3 of 21
Brownian motion
random motion of particles (following a zig-zag path)
4 of 21
diffusion
the net passive movement of particles from a region of high concentration to a low concentration
5 of 21
atoms
the smallest articles that cannot be broken down any further in chemical reactions
6 of 21
molecules
the smallest particle in a chemical element or compound that has the chemical properties of that element or compound
7 of 21
ions
one/group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons
8 of 21
solid
fixed shape, fixed volume, doesn't flow
9 of 21
liquid
shape can change, fixed volume, flows easily
10 of 21
gas
no fixed volume or shape, spread out to fill its container, lighter
11 of 21
changing state
gas cooled below 100 degrees Celsius condenses to form water, which when cooled below 0 degrees freezes to form ice
12 of 21
heating curve
a plot or graph wherein a substance is subjected to increasing temperature against time to measure the amount of energy it absorbs and changes state with increasing temperature
13 of 21
cooling curve
a line graph that represents the change of phase of matter, typically from a gas to a solid or a liquid to a solid
14 of 21
sublimation
when a substances goes straight from a solid to a gas
15 of 21
melting
when a solid is heated, its particles gather more energy and vibrate more which causes the solid to expand, and melt
16 of 21
boiling
when a liquid is heated, its particles gather more energy and move faster, making them bump into each other more often and causing them to bounce further away, making the liquid expand and break away
17 of 21
evaporating
when some particles have more energy then others in a liquid and at boiling point some have enough energy to break away, evaporating
18 of 21
pressure
depends on the temperature of the gas and the volume it takes up (when you heat a gas in a cloud container or when a gas is compressed into a small space, the pressure increases)
19 of 21
relative molecular mass
is used to measure the mass of a particles
20 of 21
mass of particles, temperature, RAM and diffusion
the lower the mass of it's particles, the lowers its RAM, and the higher the temperature, the faster a gas will diffuse
21 of 21
Other cards in this set
Card 2
Front
noticed particles of pollen moving around
Back
Robert Brown (1827)
Card 3
Front
found pollen particles were moving due to water particles striking them
Back
Card 4
Front
random motion of particles (following a zig-zag path)
Back
Card 5
Front
the net passive movement of particles from a region of high concentration to a low concentration
Comments
No comments have yet been made