STUDY ISLAND MCAS REVIEW LIFE SCIENCE

Assignment #4Energy & Living ThingsChanges in Ecosystems

Energy in Ecosystems

PHOTOSYNTHESIS

Can youexplain the

diagram shown?

Energy in Ecosystems

What is the source of energyfor photosynthesis?

What pigment is found inplants that allows them to

photosynthesize?

What ingredients do plantsneed in order to photosynthesize?

What are the products of photosynthesis?

PHOTOSYNTHESIS

Energy in Ecosystems

What is the source of energyfor photosynthesis?

The SunWhat pigment is found inplants that allows them to

photosynthesize?Chlorophyll

What ingredients do plantsneed in order to photosynthesize?

Carbon Dioxide & WaterWhat are the products

of photosynthesis? Sugar (Glucose) & Water

PHOTOSYNTHESIS

Energy in Ecosystems

Can you…

Explain the formula shown above?

Energy in Ecosystems

QUICK CHECK!Can you name the producer, primary consumers,

secondary consumers?

Energy in Ecosystems

FOOD WEB CONNECTIONS

What if….

All of the trees were cut down and removed from this food web?

All of the mountain lions were huntedand removed from this food web?

All of the insects (grasshoppers/aphids)were killed by pesticides and removed

from this food web?

Energy in Ecosystems

Can you…Describe the role of decomposers in an ecosystem?

Name two kinds of decomposers in a forest food web?

Changes in Ecosystems Over Time

Can youexplain the

graph shown?

Changes in Ecosystems Over Time

Can youexplain the

graph shown?

Changes in Ecosystems Over Time

Can youexplain the

graphs shown?

This lesson will help you to review materialthat you learned in Grade 7 Life Science and

prepare you for this week’s Study Island lesson.

Your Grade 7 teachers send best wishesand know you will be successful on

Grade 8 Science MCAS.

YOU CAN DO IT!!