Particle Theory
Name the three states of matter
Solids
Liquids
Gas
What does a solution consist of?
a solute dissolved in a solvent
Name the two types of changes
Physical and Chemical
The universe consists of what?
Stars, Solar Systems and Galaxies
What is a star made up of?
Gases
Hydrogen and Helium - Extra 5 points
Solids have definite volume while gases do not, does liquid have definite volume?
Yes
Explain a diluted solution
A dilute solution contains a small amount of solute dissolved in a given amount of solvent
chemical
What does Hubble's law state?
Galaxies are moving away from each other. The farther away a galaxy is, the faster the galaxy is moving away from us.
The fusion of two hydrogen atoms to form helium is caused by what type of reaction
Nuclear
How do you get from a gas to a liquid?
Condense the gas
Solids that dissolve in a liquid are said to be ... (soluble/insoluble)
Soluble
Name four things you should look out for when observing change
colour change
change in temperature
if light is emitted
if bubbles are produced
What is the small area in the universe where the big bang occurred
a singularity
Name the 4 phases of the lifecycle of a star
The formation
The stable period
The Red Giant
The white dwarf
What is diffusion?
The movement of particles from ana area of high concentration to ana area of low concentration
Name a way in which you can separate mixtures
Filtration/Evaporation/Distillation/Chromatography
State the law of the conservation of mass
The mass of a substance cannot be created or destroyed
The big bang caused what to happen?
Rise in temperature
The formation of sub-atomic particles
What happens when a star runs out of hydrogen for energy
It uses its helium stores
Do particles lose or gain energy when moving from states of matter ?
Gain energy
Name the equipment used to demonstrate distillation
Liebig condenser
Explain the changes that take place when a candle is burning
Flame burning - chemical
Wax melting - physical
How did matter form?
Gravity pulled atoms and particles together
Name the 3 categories that planets can be categorised in to
Extra 5 points - name what category earth is in
Terrestrial, Jovian and Planetoids
Extra 5 point - Terrestrial