section 4 what animal’s eat
Post on 15-Mar-2016
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DESCRIPTIONSection 4 What Animal’s Eat. For Use with the KS2 Science Curriculum Topic 3A. Adapted by Oral Health Promotion, Devon 2014. Human teeth. The four types of teeth. 1. Incisor ( Cutting ). 2. Canine ( Piercing ). 3. Premolar ( Crushing ). 4. Molar ( Grinding ). Incisor. - PowerPoint PPT Presentation
Section 4 What Animals EatFor Use with the KS2 Science Curriculum Topic 3A
Adapted by Oral Health Promotion, Devon 2014
The four types of teeth 1. Incisor ( Cutting ) 2. Canine ( Piercing ) 3. Premolar ( Crushing ) 4. Molar ( Grinding )
IncisorUsed for cutting.
CanineThe Romans called their dogs canines. Why is this a good name for this tooth ?
PremolarPre-Molar means in front of the molars. Its job is to crush things. Especially nuts. Just like this nutcracker.
MolarMolar is the Latin name for this grinding bowl. This is what the molar does. It grinds our food before we swallow it.
Human teethThats the human mouth. Let us see how animals teeth can differ from ours.
CarnivoreCarnivores have special chewing teeth called carnassial teeth. They act like knives, and are used for slicing meat.
CarnivoresCan you think of any animals which are carnivores ?
The dogAlsatians are famous for their big teeth. Which makes them very useful as police and guard dogs.
Big catsThe leopard uses its long canines to hang onto its prey when hunting.
The catEven your family cat has sharp teeth like his wild relatives. Though he preys on smaller game.
The sharkSharks teeth are unlike any other carnivore. They are not really teeth at all. The shark has special teeth evolved from skin scales. They are shed continually throughout its life and are very sharp.
HerbivoreHerbivores specialise in eating plants. They have a gap between their cutting teeth and the chewing teeth. This is called the diastema. Food rests here before being pushed back onto the chewing teeth.
HerbivoreCan you think of any animals which are herbivores ?
The horseHorses eat grass and have large blade like incisors to crop the grass before chewing.
The sheepSheep also eat grass. You can see the gap between the incisors and the chewing teeth on the sheeps skull.
The elephantElephants have very long modified canines called tusks. These are used for defence. Their other teeth are specialized for eating grass just like other herbivores. Though these are also very large due to the animals size and the huge amount of food it eats.
The giraffeGiraffes have no front teeth at all. They use their lips to pull down leaves and shoots. Then they push the food back onto the molars with their tongues.
The rabbitThe rabbit has two large incisors that are used for gnawing. It is a specialized type of herbivore.
OmnivoreOmnivores eat both animals and plants. Their teeth are not specialized, and their diets can include a wide range of different foods.
OmnivoresCan you think of any more animals which are omnivores ?
The bear Bears will eat absolutely anything. Nuts, berries, roots, and small animals. Their favourite food is salmon caught right out of the river.
The chicken While chickens eat primarily grain and seeds, they will also eat insects and earthworms if they can. So free range chickens have a more varied diet.
HumansHumans can eat a very wide variety of foods. Meat, fish, fruit, vegetables, nuts, seeds, milk, cheese, bread, eggs, etc.
QuestionsWhat kinds of animals have carnassial teeth ?
How are horses teeth adapted for their diet of grass ?
Name three omnivores ?
Why does a squirrel have long teeth ?
With thanks to Graeme Jones, Liverpool Dental Health Promotion