1. Energy Transformations, Food Chains, and food webs

2. Photosynthesis Photosynthesis Equation (Use Chemical Formulas):
Radiant Energy
Oxygen
Carbon Dioxide
Glucose
Water
Photosynthesis Equation (Use Chemical Formulas):
______+_______  ______________+_______
Sunlight
6 CO2
6 H2O
C6H12O6
6 O2

3. Key Terms Producers Autotrophs Consumers Heterotrophs
_________________ have the ability to make their own food (also called ______________).
_________________ rely on other organisms for their energy (also called _______________).
_________ ________ are the first to eat another organism in the food chain.
_________ ________ are the second to eat another organism in the food chain.
_________ ________ are the third to eat another organism in the food chain.
_________ ________ are the fourth to eat another organism in the food chain.
Autotrophs
Consumers
Heterotrophs
Primary Consumers
Secondary Consumers
Tertiary Consumers
Quatrinary Consumers

4. Key Terms
Herbivores
_________________ can only obtain their energy they need to live from plants.
_________________ can only obtain their energy they need to live from other animals.
________________ can obtain their energy they need to live from plants OR animals.
________________ obtain the energy they need to live from dead organisms.
_________________ obtain the energy they need to live by breaking down waste and the last remains of dead organisms (after the scavengers).
Who is the first to use the energy recycled by the decomposers? _______
Carnivores
Omnivores
Scavengers
Decomposers
Producers

5. Energy Pyramid
10%
How much energy is passed from one tropic level to the next? _______
What is this rule called? ________
What happens to the other 90%?
____________________________
________________________
Why are their fewer organisms as
we work our way up the pyramid?
__________________________
_________________________.
What is a tropic level?
Where would the decomposer be?
__________________
10% Rule
It is used by the organism to live and most is lost in the form of heat
Because the lower levels determine the amount of food available to the next higher level
It is the tern used to describe the levels of an energy pyramid
At all levels breaking down dead organisms

6. Food Chains Name 1 Primary Consumer________________
Rabbit; Mouse; Grass Hopper
Name 1 Primary Consumer________________
Name 1 Secondary Consumer __________________
What do the arrows show?______________________
What happens if:
The rabbits over-populate? _____________________________
The snakes contract a disease that kills of 75% of their population? _________________________________
The owls are over-hunted? ___________________________
Owl, Fox, Frog
The direction of the flow of energy
Carrots decrease and foxes increase
Frogs over populate and hawks decrease
Mice overpopulate and corn decreases

7. Food Webs Name 2 Secondary Consumers:____________ & __________
Wild Cat Snake
Name 2 Secondary Consumers:____________ & __________
Name 2 Tertiary Consumers: ___________ & ___________
What happens if:
The rabbits over-populate? _________________________
The snakes contract a disease that kills of 75% of their population? ________________________________
The owls are over-hunted? ____________________________
The goats over-graze the plants? _________________________
Lion Kite
Plants & mice decrease; Jackal & Wild cat increase
Mice increase; Kites Decrease
Mice Increase; Rabbits increase; etc…
Rabbits decrease; mice decrease

8. Composting What is composting? _____________________
_______________________________________
What CAN go into a compost bin? ___________
________________________________________
What can NOT go into a compost bin?________
A lot of the energy in compost bins are lost to:
_______________
nature's process of recycling decomposed organic materials into a rich soil
Plant material, paper, worms, grass clippings, tree twigs and limbs
Bread, butter, dairy products, plastics, metals, Styrofoam
HEAT!!!!!