Pebbles everywhere

Look at the pebbles in the path here; some of them are big enough to be called cobbles.


Triassic beasts

The pebbles arrived here in Triassic times – when some of the biggest creatures you could meet on this Voyage were around!

The reptiles of the Triassic would eventually evolve into the giant dinosaurs of the Jurassic and Cretaceous times. The Triassic ‘early dinosaurs’ at sizes up to several metres long and high would still probably have been very dangerous creatures to encounter!

The image shows a reconstruction of a ‘sail reptile’ named Ctenosauriscid. The sail may have provided a means of cooling.


Getting your score!

Once you have visited all the Task Sites and answered all the questions for this last site, you should get your final score computed and output on a screen like the example above. But what if nothing happens?

Check the blue lights on the buttons you see when you select ‘list all’. If any are not lit, or are dim, then that is a Task Site where you have missed answering all or some of the questions. What to do? You are allowed to answer up to 10 questions without having to go back to the Task Sites, and do so without any penalty. If you have missed answering more than 10, you will have to go back to the Task Site(s) involved, or unlock the Voyage to be able to answer the missed tasks – that will cost you a score penalty. Another option would be to Save the Voyage (under Health – Score) and then continue the Voyage another day, completing the missed sites. When you save a Voyage all you current score information for each Task Site is saved.

The picture below is an example of the blue indicators on the Task Site buttons under ‘list all’.

Well done!

Well done! You have completed this Voyage in Deep Time. The map shows a simple route back to the comforts of the Lickey Hills Visitor centre.


Task Site 9 Questions

What rock or mineral do you think most of the pebbles made of?

a) Calcite
b) Quartz
c) Basalt
d) Feldspar


Where do you think the pebbles could have come from?

a) A pebble beach
b) A rock avalance
c) Man-made concrete
d) Big river beds


Why do you think the pebbles are rounded?

a) They dissolved in the river water
b) Lots of people have walked on them
c) They knocked against each other as carried by the river


How far do you think the pebbles travelled in the river before they were deposited on the river bed for the last time?

a) 100 metres
b) a few kilometres
c) Tens of kilometres
d) Hundreds of kilometres


A rock that is full of rounded pebbles is a conglomerate. Find how old this one is.

a) 250 million years in Triassic
b) 450 million years in Triassic
c) 150 million years in Jurassic
d) 100 million years in Silurian