Rough Guide to Gas

The Rough Guide to Gas

Is the rock suitable?

A fair test

Testing the rocks

To make a good comparison, it must be a fair test. Read this list and then tick the ones you think would need to be the same for both samples of rock.

choose as many as you think...

#msg_a#

checked = "checked" /> tick#msg_b#

checked = "checked" /> tick#msg_c#

#msg_d#

#msg_e#

checked = "checked" /> tick#msg_f#

You can't just tick all the options - that's cheating!

checking answers

Well done, all correct tick

Now see if you can understand the results

not quite - #correct# out of #maxCorrect#

Try again.

Tick your choices and then check your answers