You have all been given either a key word or a

definition

In ABSOLUTE SILENCE you must try and find your

match

Habitats, Adaptations, and

Food Chains

Monday March 9th, 2009

3 a b c

Know types of plants

Know adaptations of plants that suit them to environmentsIdentify a simple food chain

4 a b

c

Group plants into main groups by looking at features

Describe organisms in a food chain as either producer, herbivore or carnivoreDescribe feeding relationships between organisms

5 a b c

Describe organisms in a food chain as either producer, primary consumer or secondary consumerIdentify food chains in a food web

Describe how an organism is adapted to its environment6 a b c

Analyse food webs and describe consequences in changes of numbers of organismsAnalyse hoe environmental factors may influence populationsLink distribution of an organism to its characteristics

7 a b c

Predict changes in the size of a population with reasoned argumentUse food chains to predict pyramids of numberAnalyse and predict the effect of long and short term environmental changes on an ecosystem and use scientific knowledge to justify predictions

Use these words to fill in the gaps on your sheetOmnivore

Food ChainsLight

HabitatHerbivoreFood webs

AdaptedGreen Plants

Environmental conditions

Further Adaptations

How are the following species adapted for their environment / habitat: (2 marks each)

a) Polar Bear?b) Camel?

white greasy fur repels water and acts as camouflage

thick fur and body fat insulate from the cold

large, wide feet spread the body’s weight and act as good paddles and snow shoes

small ears and small body surface area to volume ratio reduces heat loss

eyes have brown irises to reduce the glare from the Sun’s reflection

black skin is a good absorber of heat

fat is stored in the hump to reduce overheating

little water is lost through sweating or urination

long, thin legs help to increase body surface area and increase heat loss

wide feet spread out body weight on shifting sand

nostrils can be closed for protection during sandstorms

very varied diet, ranging from grass and bark to thorns and bones.

long eyelashes and furry ears prevent sand and dust from getting in

Food Chains

Food chains show us what is eaten by what. Look at the food chain below:

grass rabbit hawk

The shows the direction of energy flow in the chain. We can imagine that the arrow means ‘eaten by’, so energy is transferred in the direction of the arrow. So this food chain says:

Note that food chains always start with a producer. If this is a plant it can be any parts of the plant , such as the seeds, fruits, leaves or even dead leaves.

Grass is eaten by the rabbit, which is eaten by a hawk.

Drag the organisms into the boxes at the bottom to make 3 food chains. Your food chains must include at least 3 organisms but can include 4.

ClassificationWhat? – putting things into groups according to how

similar they areThese groups are called species.

MAMMALS

BIRDS

REPTILES

AMPHIBIANS

FISH

Fill in the table below with characteristics that describe each of the following vertebrates. Use

Page 36 in Science to 14 to help you.

1. Name the producer in this foodweb.

2. Name two herbivores in this foodweb.

3. Name a species that is both a primary consumer and a secondary consumer.

4. Name two species that are eaten by humans.

5. Where do plants get their food?

plants

shrimp

Small fish

tuna

human

chicken

cow

fox

Food web reminder

1. What would happen to the population of foxes if some of the chickens decreased? Why?

2. What would happen to the number of tuna if the shrimp decreased? Why?

3. What would happen to the number of tuna and cows if the chickens decreased? Why?plants

shrimp

Small fish

tuna

human

chicken

cow

fox

Answer the following questions about the food web on the next slide

1. Name two herbivores2. Write down two food chains containing the ‘penguin’3. Name a secondary consumer4. What would happen to the number of ‘leopard seals’ if

some ‘smaller toothed whales’ died? Why?5. What would happen to the number of ‘other seals’ if the

population of ‘other birds’ increased? Why?

How much progress did you make today?

• Use the table on the next slide to give yourself a level for your progress this lesson(we have covered those in bold)

• Give yourself a target for improvement

3 a b c

Know types of plants

Know adaptations of plants that suit them to environmentsIdentify a simple food chain

4 a b

c

Group plants into main groups by looking at features

Describe organisms in a food chain as either producer, herbivore or carnivoreDescribe feeding relationships between organisms

5 a b c

Describe organisms in a food chain as either producer, primary consumer or secondary consumerIdentify food chains in a food web

Describe how an organism is adapted to its environment6 a b c

Analyse food webs and describe consequences in changes of numbers of organismsAnalyse how environmental factors may influence populationsLink distribution of an organism to its characteristics

7 a b c

Predict changes in the size of a population with reasoned argumentUse food chains to predict pyramids of numberAnalyse and predict the effect of long and short term environmental changes on an ecosystem and use scientific knowledge to justify predictions

HomeworkComplete the provided

worksheet for WEDNESDAY