On Cryptids, you go to the Himalayas and ask for the Yeti skull. He will not give you it, but you will be handed a lantern to 'light your way' as he claims.
On poptropica Cryptids Island, the matches are used to light a lantern you get from the monastery (in the Himalayas) which eventually assists you in finding the jersey devil.
You need the lantern from the Himalayas, and the matches from Loch Ness, so that you can travel in the dark forest at New Jersey.
hop on the helicoper in front of Mew's mansion
You need the lantern in the dark woods of New Jersey. You will need the matches from the pub in Loch Ness to light it. (see related question)
On the end of the bar. Get the lantern from the Himalayas and when you go to New Jersey, use the matches and the lantern will light, allowing you to go to the deserted house in the woods.
There are matches on the bar in the pub at Loch Ness. You need them to light the lantern from the Himalayas when you are on the motorcycle in New Jersey.
It would really depend on the kids' opinions of what is scary to them or not, but I think that the giant spider on Early Poptropica island and the Jersey Devil on Cryptids island might scare them.
You USE the matches from your item bag. The matches are used to light the Lantern that you get from the monastery in the Himalayas. You need the lantern to go through the dark forest in New Jersey.
Go back to the Himalayas, and now you can climb a rope at the right side (above the helicopter), and go back to the monastery for the lantern.
The matches (in the Pub at Loch Ness) light the lantern (in the monastery of the Himalayas) so that you can see in the dark forest of New Jersey.
Use the matches from the pub at Loch Ness to light the lantern from the monastery in the Himalayas, which you have to use in the forest at New Jersey.
The forest is in New Jersey. You will need the lantern from the Himalayas, the matches from the pub at Loch Ness, and the bolt cutters from Puerto Rico before you can proceed at New Jersey.