-How many dinosaurs were there?
There are two meanings for this question.  One is how many actual dinosaurs were alive meaning each individual dinosaur and the other is the number of types of dinosaurs.  We know of almost 600 different types of dinosaurs.  Some are invalid because only a scrap of a dinosaur has been named.  Regardless, they will be only a very small fragment of the number of dinosaurs that were around.  There are probably many types of dinosaurs that we will never know about because they were not turned to fossil, or are still buried and have not been found yet.  Estimates are that there would have been tens of thousands of different types of dinosaurs.  As to the number of individual dinosaurs, there would have been tens of billions of dinosaurs throughout the time they were alive.
-Which was the first dinosaur found?
People have been finding dinosaur bones and the remains of fossils throughout history and they were thought to be dragons, giant lizards, goannas, mythical creatures, etc.  The first time that someone found a dinosaur bone and described it in the scientific literature was in 1677 by a chemist called Robert Clott.  He found the bottom of a leg bone from a dinosaur called Megalosaurus, but he didn't know it was the bone of a dinosaur, because he didn't know what a dinosaur was.  The first time someone found a dinosaur bone and realised it came from a long extinct animal, probably some kind of lizard, was in 1822 by a man named Gideon Mantell.  He found teeth from Iguanodon and Megalosaurus in England.
-How do dinosaurs get their names?
People give them their names.  They are not born with their names.  Kids often have the idea that dinosaurs were born with names like Triceratops.  Jut like all animals you have to name them.  When Triceratops was alive, it didn't know that it was a Triceratops, it didn't even know it was a dinosaur.  With the older children, it is a good idea to go into why they were named eg. Triceratops was named because it had three horns on its face - 'tri' meaning three, 'cera' meaning horn, 'tops' meaning face, hence Triceratops.  The person who finds the animal has the right of naming it and they usually use words from ancient languages which help to describe the animal.  There is a section in the presentation dealing with Australian dinosaurs and how dinosaurs are named and this explains the naming process
-How long do dinosaurs live as individuals?
This is difficult to say.  Basically small dinosaurs would not have lived as long as the larger dinosaurs, the same as mice do not live as long as elephants.  Small dinosaurs may have lived for about 10 years or so, where the larger ones may have lived for as long as 200 years.
-Why were dinosaurs so big?
Not all dinosaurs were big.  The average dinosaur weighed less than one tonne.  The smallest dinosaur was called Compsognathus and he was about the size of a chicken.  Dinosaurs were not all big.  It is true that the biggest dinosaurs were much bigger than the largest animals alive today.  Why?  We don't really know.  Possibly because the land was all joined up in one big continent the animals had a much larger area to roam around in and to gather their food.  That would be the answer you would give to the younger students.  With the older kids, you could ask them about Africa today.  You have elephants which are fairly big animals, larger than any animal living in Australia and you go right the way down to small animals.  You do not have large animals living on small islands - the smaller the island, the smaller the animal.  If you joined all the continents up together and make one large land mass, you would have larger animals.  Maybe that has something to do with it
-What killed the dinosaurs?
Usually they are talking about the Cretaceous Extinction, not the types of diseases that dinosaurs could get.  The point to make about the Cretaceous Extinction (there is a whole essay on this subject in the Training Manual) is that when the dinosaurs disappeared, it was not just the dinosaurs, it was around 70% of everything on the face of the earth, including animals and plants, that disappeared with them. Whatever wiped out the dinosaurs had a much greater effect, it was not that they were too stupid or they were taken by aliens or mammals ate all their eggs because it does not explain what happened.  It was a big worldwide catastrophe. We know that at the same time the world was hit by a large meteorite about 10km across, travelling at about 50,000 kph.  It left a hole in Mexico about 150 km across and the crater rim was about 300 km across.  The effect of this hitting the earth was an explosion equivalent to about ten times the world's nuclear arsenal being detonated at once. It would have generated so much energy that it would have vaporised the meteorite.  Can you imagine vaporising a piece of rock about 10 km across?  That energy would most likely be put out as heat and create extreme firestorms.  Within 3-4 hours of it hitting the earth, the area within 2,000 km of that site would have been incinerated.  A fire that big creates a lot of smoke and dust and when you put that much into the atmosphere, you are going to create a cloud that covers the earth that is capable of blocking out the sum for a period from two months for anything up to two years. Without sunlight, the whole food chain collapses very quickly.  Plants cannot grow and so the plant eating dinosaurs would have died and without the plant eating dinosaurs, the meat eating dinosaurs would have died. This then leads to the question of how did the other 30% of all living things survive?  The animals and life forms that survived had a few things in common. Plants have seeds and spores and are capable of laying dormant for a very long period of time, years if necessary, and that is how the plants survived. The animals that survived were mammals, frogs, crocodiles, snakes, lizards and turtles.  All of these animals have three things in common.  Firstly they all have the capacity to hibernate and slow themselves down so that they do not need as much energy to survive.  Secondly, all those that survived were small, under 25 kg in mass and they were able to hide in small places so that they did not have to face the full rigours of an environmental catastrophe.  Lastly, all of these animals were generalists which meant that they were able to eat anything and everything that was laying around - they were scavengers and would have eaten rotting vegetation and rotting meat, or even each other.  Tyrannosaurus rex, for example, lived on Triceratops and when Triceratops died out, who would have told him to eat something else?
-Why are dinosaurs so popular?
The best  reason is because they were big, they were fierce and they are entirely safe because they are dead.  They fire the imagination of kids because they were so big and they know that they cannot do them any harm.
-What is the closest living relative to the dinosaurs?
Birds are the closest living relatives because they are dinosaurs.  Apart from birds, the next ones are crocodiles. Try and make a game where you can with the answers.  If you were asked what are the closest living relatives to dinosaurs, you can then turn around and ask the kids that question.  You can say that there is still a group of dinosaurs living today.  Does anybody want to have a guess as to what they are?  They will answer with turtles, crocodiles or elephants.  By throwing it back to the kids and keeping that interaction going helps to keep their attention.  Use it any chance you get because it is well worth the effort.  
-How big was he?
The biggest Tyrannosaurus rex skeleton that has been found is an almost complete skeleton and is 14.6 metres long, but we have indications that they could have been a further 16% larger.
-How much did he eat?
Estimates suggest that he ate about one tonne of meat per day (about 10 cows).
-Which dinosaurs could kill a Tyrannosaurus?
In a one on one fight, there is probably no animal that could kill Tyrannosaurus rexTriceratops is only 9 metres long and if it is being attacked by a 14 or 15 metre long Tyrannosaurus, he only has to jump on the Triceratops to break its back.  There was probably no dinosaur that could kill a Tyrannosaurus which is why the herbivores would have stuck together.  He could have been killed by a virus, colds, diseases.  By bringing in the health aspect, it produces a new direction to their understanding that such a large animal could be killed by a cold.
-How much did he weigh?
About 7-8 tonnes - about the size of a small Mack truck.
-How fast could he run?
Estimates vary from about 35-45 kph, but he could only keep this speed up for a minute or so.  We can tell this by the distance between his footprints and the height of his hips as to how fast the animal could run.
-Are there any dinosaurs alive today?
Yes and you probably saw some on your way to school today.  Can anyone have a guess what it is?  Other than birds there are no dinosaurs alive today.  They became extinct about 65 million years ago.
-Is the Loch Ness Monster a dinosaur?
The Loch Ness Monster is a figment of the Scottish Tourist Board's imagination.  If they want proof that it is a relic left over from the Age of the Dinosaurs, 3 million years ago Loch Ness was under 3km of ice.  How do you survive for 1,000 years under 3 km of ice.  Even if it is what they claim, a plesiosaur, they are not dinosaurs.  They lived at the end of Age of the Dinosaurs, but they are not dinosaurs. Another reason why they feel that the Loch Ness Monster does not exist is because you cannot have a viable population unless there are about 40 animals in a colony.
-Were people alive at the same time as the dinosaurs?
No.  The dinosaurs became extinct about 65 million years ago.  The people that we recognise as belonging to our species appeared only in about the last one million years so there are about 64 million years between when the dinosaurs died out and when 'man' appeared on the earth.
-Did dinosaurs live in the sea or the air?
No, except for the birds.  Rule number one is that no dinosaur ever lived in the air or in the sea and the second rule is that all dinosaurs walked with their legs underneath them.  At the end of the senior lecture, you may find that one kid will put up their hand to tell you that you said that birds are dinosaurs.  If this is the case you can feel satisfied that you have made one child take notice and listen to what you have said.  No dinosaurs ever lived in the water. That is an excellent question and I am glad that you have paid that much attention.  Although birds are called dinosaurs, they are now so different to what we think of as dinosaurs, we don't call them dinosaurs, or you can say that birds are the one exception to the rule that dinosaurs never flew
-How do you know what colour dinosaurs were?
We don't know what colour they were.  We can only look at the animals of today and see how they are coloured depending on their environment.  They tend to blend in to their surroundings and from this we can only assume that dinosaurs were also coloured to blend with their surroundings.
-What is the biggest dinosaur and how big was it?
Seismosaurus was the biggest dinosaur that we know about.  It was about 40 metres long.
-What is the smallest dinosaur and how small was it?
Compsognathus and it was about the size of a chicken.
-Which was the first dinosaur and when did it live?
The earliest dinosaur is called Herrerasaurus, living in South America about 210 million years ago.  There is now an earlier dinosaur by about one million years earlier known as Eoraptor.  'Raptor' means thief or hunter eg. Oviraptor means egg thief.
-Which was the last dinosaur and when did it die out?
Dinosaurs are still alive - birds. But you mean dinosaur dinosaurs don't you.  So many dinosaurs died out in the Cretaceous Extinction that it is difficult to say which one actually died off before the others.  We just do not know which one lasted the longest.
-How big is the biggest dinosaur egg?
25cm with 4 litres capacity
-How big is an Utarapter claw?
6" (15cm)
-How many bones are in a T-Rex skeleton?
There are approximately 350 bones in the skeleton.
-What is the name of the Ceratopsian dinosaur that has spikes all around its face and its nose?
This is called  a Styrachosaurus.
-How did dinosaurs start?
Scientists believe that all animals, including dinosaurs, came about through a  gradual process in evolution and time.
-Did the T-Rex dinosaur live in all the periods of dinosaurs? i.e. Jurassic, Triassic, Cretacious?
No, the T Rex only lived at the end of the Cretacius period and only in Nth America.
-What is the latest dinosaur found?
Dinosaurs are being discovered everyday.  Palaeontologists are currently working on new sites in Texas, USA and a large  Sauropod found in England.
-What was the first land walking animal?
It was called 'Ichthyostegar' and was the first animal with a backbone.  Insects & scorpions have been on the earth for about 410 million years.
-How did dinosaurs sleep?
This depended on the size of the dinsosaur.  Large Sauropods would have slept standing and the smaller ones would have laid down.
-How do we know the Woolly Mammoth was woolly?
We have about two dozen specimens of mammoths that were frozen in glaciers. Thes animals are perfectly preserved including all internal organs, stomach and mouth contents and they are covered in fur.  One Woolly Rhinoceros has also been found preserved by being frozen.
-How many dinosaurs were found in Antarctica?
So far two dinosaurs have been described from Antarctica.  A meat-eater similar to Allosaurus and an armoured dinosaur similar to Minmi.
-How many dinosaur eggs could a dinosaur lay (maximum)?
Dinosaur nests are very rare and probably do not represent the full range of nest sizes, the largest contain up to 30 eggs.
-What is the dinosaur that ate plants and meat?

  Dinosaurs that eat both plants and meat are called omnivores.  There are a few smalldinosaurs that may have been onmivored including Compsognathus  and  Heterodontosaurus.


-Where were the Stegosaurus and Allosaurus skulls found?
Usually at the front end of the animal (!).  Both Stegosaurus and  Allosaurus are known from a few places around the world but the best material of both species, including complete skulls, come from the United States in Colorado and Utah.