Term
|
Definition
| is hard to compress as molecules are held tightly together by bonds |
|
|
Term
|
Definition
| difficult to compress as there is only a small space between molecules |
|
|
Term
|
Definition
| easy to compress as moving around faster |
|
|
Term
|
Definition
| works as the bulb expands easily pushing liquid up the thin tube |
|
|
Term
|
Definition
| have expansion joints so they don't bend in the heat |
|
|
Term
|
Definition
| expands when it is frozen |
|
|
Term
|
Definition
| when all the variables are held equal eg. temp, volume |
|
|
Term
|
Definition
| repeating tests to check for variability |
|
|
Term
|
Definition
| treated the same as all the samples not exposed to variables |
|
|
Term
|
Definition
| separating out undissolved particles from a liquid |
|
|
Term
|
Definition
|
|
Term
|
Definition
solid eg carbon, sulphur, iodine
liquid eg bromine
dull and brittle
most don't conduct electricity and heat they are insulators
able to combine with oxygen to form oxides which dissolve in water to form acids |
|
|
Term
|
Definition
has physical properties of a non metal
has chemical properties of a metal has atomic number of 1
combines with oxygen to form a liquid oxide which is neutral |
|
|
Term
|
Definition
all solid
shiny
bendy
conduct electricity and heat
can combine with oxygen to form solid oxides called bases |
|
|
Term
|
Definition
| substances that change their colour when they come in contact with a particular substance |
|
|
Term
|
Definition
turns red when added to acids
turns blue when added to alkalis
does not change colour when added to neutral liquids |
|
|
