They prepare their children for Shabbat and light the Shabbat candles.
Religiously observant Jews would not board a plane if Shabbat were to start while in transit. The issue wouldn't be landing during Shabbat, the issue would be flying during Shabbat.
You can dance but you can't play music during Shabbat.
Shabbat shalom is a Jewish greeting which we say during the day of Shabbat. See also:More about the Jewish Shabbat
No, sewing is one of the activities not allowed during Shabbat as we are not supposed to create on the day of rest.
No, Shabbat is the day of rest during which the festive meals are eaten.
Orthodox Jews only use electricity in a passive manner during Shabbat. This means that they can leave electrical appliances on over Shabbat or use timers that automatically turn such things as lamps on and off.
There is no issue with swimming during Shabbat, however, you wouldn't be able to shower after swimming until Shabbat ends. (Assuming you wish to be Shabbat observant.)
'Shabbat shalom', which means 'A peaceful Sabbath', is said during Shabbat - sundown Friday to Saturday after twilight.
It's kindling a flame, one of the prohibitions on Shabbat.
They go to their synagogues for Shabbat Friday night services and Shabbat Saturday morning services.
It means "Have a peaceful Sabbath". It's how Jews greet each other during Shabbat.