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Science topics ages 7 - 8
Teeth and eating
Curriculum relevance |
Online lesson plan
Offline lesson plan
| Worksheet |
Activity |
Quiz
Online lesson plan
Objectives
Understand that different animals have different diets
Know that animals have different kinds of teeth because they have different
diets
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National Curriculum
England: Key Stage 2, Sc2, 2a
Wales: Key Stage 2, Life processes and living things, 2.1
Northern Ireland: Key Stage 2, Living things, Animals and plants a, b
Scotland: 5-14 Guidelines, Science, Variety and characteristic features, Level
C
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Resources required
Online activity from Science Clips website: Teeth and eating
Pictures of different animals and examples of their diet
A rabbit and cat jawbone and teeth (or diagrams of them)
Plasticine or other moulding material used to make models of different
teeth
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Teaching activities
Introduction
Display pictures of a number of different animals with different diets (e.g.
cat, rabbit, shark, robin, cow). Ask children if all these animals eat the same
food.
Display pictures of the food these animals eat (mice/small birds,
lettuce/seeds, seals/fish, worms/grubs and grass/hay) and ask children to link
the animals to their diet. Which animals only eat plants? Which only eat
meat?
Activities
Show the children plasticine models of pairs of upper and lower incisor teeth
(thin edges joined together for cutting), canine teeth (pointy edges for
tearing) and molar teeth (two flat edges for chewing and grinding). Only use
scientific names of teeth for higher ability children.
Demonstrate action of model teeth working and ask children which teeth would
be most useful for cutting grass (incisors), chewing grass (molars), tearing
meat (canines), and chewing meat (molars).
Give children time in response partners to decide which kinds of teeth do
plant-eaters need and which do meat-eaters need?
Tell the children that you are going to look at the jawbone and teeth of a cat
and a rabbit and try to work out which is which just by looking at their
teeth.
Ask response partners to think about: What kind of teeth can they see in each
jaw? What would these teeth be useful for? Which do they think is the
cat’s jawbone and which is the rabbit’s and why?
In pairs, children use the online activity to match up ‘dentures’
with animals and their diets.
Plenary
On an interactive whiteboard, go through the online activity. Ask children how
each set of dentures helps the animal eat their food.
Ask children to share further facts they have found out about different sets
of teeth from the activity.
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Extension
On the online activity, children count the number of cutting, tearing and
chewing teeth each animal has and find out further facts about each set of
teeth to share in the plenary.
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Suggested homework
Ask children to find other plant-eating animals (herbivores) and what they
eat, and other meat-eating animals (carnivores) and what they eat.
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