Could you tell me what the ISS is?

Could you tell me what the ISS is?

So what is life like in the ISs?

Let's find out in NASA's website!

Study the rules for Indirect questions here

and do the activities that follow.

Study the rules for the use of "the" here
and do activities: The article(2) /1st activity (up to number 11)
                            The article(3)/ 1st activity

George has contributed another song,

Let's play with it in LyricsTraining

ans sing it