Page 13 of notebook!
Food Chains and Food Webs
DO NOW: FOR EACH OF THE FOLLOWING
WORDS, WRITE 3 WORDS THAT MIGHT BE
USED IN THE DEFINITION.
SKIP AT LEAST 3 LINES BETWEEN EACH WORD.
Unit 2A Learning Goal:

Students will be able to (SWBAT) demonstrate how organisms obtain
energy needed for survival and understand how energy is lost.
Today’s Target Goal

SWBAT define essential vocabulary
Lion King: Circle of Life

https://www.youtube.com/watch?v
=bW7PlTaawfQ

What does Mufasa mean by
“balance”?

Why must there be balance in
ecosystems?

What do you think Mufasa
means by the “Circle of Life”?
TURN AND TALK

What does Mufasa mean by
“balance”?

Why must there be balance in
ecosystems?

What do you think Mufasa means
by the “Circle of Life”?
What is an AUTOTROPH?

An organism that can produce its own energy

“auto” – self

“troph” – nourishing

All plants are autotrophs

AUTOTROPHS ARE ALSO CALLED PRODUCERS

They are the first organisms in a food chain – get energy from sun
What is a HETEROTROPH?

An organism that cannot obtain energy on its own.


“hetero” - other
Must obtain energy from other organisms.
HETEROTROPHS

TYPES:


Consumers

Herbivores – plant eaters

Carnivores – animal eaters

Omnivores – eat everything
Decomposers – get energy by decomposing dead organisms
New Vocabulary
FILL IN THE BOXES WITH A DEFINITION IN YOUR OWN WORDS, A PICTURE,
AND AN EXAMPLE
HERBIVORE
CARNIVORE
OMNIVORE
HETEROTROPH
AUTOTROPH
PRODUCER
CONSUMER
DECOMPOSER
Do Now: Update Table of Contents
Glue/Staple/Tape one pager onto page 10
(Without rubric – keep rubric in folder)
Page 15: Food Chains and Food Webs
Arrange the organisms in a sequence showing who eats whom
Write sentences in order of what happens.
Ex: “1. grasshopper eats…”
TARGET GOAL
SWBAT conclude that all
organisms are interconnected by
constructing a class food web.
AUTOTROPH
PRODUCER
HETEROTROPH
HETEROTROPH
HETEROTROPH
PRIMARY
CONSUMER
SECONDARY
CONSUMER
HIGH LEVEL
CONSUMER
HERBIVORE
CARNIVORE
CARNIVORE
HETEROTROPH
DECOMPOSER
Lion King: Circle of Life
•In environmental science, the circle of life is referred to as a
food chain or food web.
•It’s a sequence showing how organisms get energy – who
eats whom.
What is a FOOD WEB?
•It’s a connection of different food chains.
WEAVING A CLASS FOOD WEB
Page 14 of your notebook

Choose an ecosystem

Draw what organisms you would find in that ecosystem

Connect them together through a food web – who would eat
whom?

Display all possible connections
Exit Ticket

Explain the meaning behind Mufasa’s quote, when he was
explaining the Circle of Life to Simba: “When we die, our bodies
become grass…”

Do you think killing wolves is a good idea? Support your answer.
Homework

History of wolves reading and questions
Do Now
Arrange the organisms in a sequence showing who eats whom
AND identify autotroph/heterotrophs/herbivore/carnivore/decomposer
Target Goal
SWBAT
examine similarities and
differences between heterotrophs
and autotrophs
Make a venn diagram comparing
and contrasting autotrophs and
heterotrophs
Heterotroph vs. Autotroph

Heterotroph:
 Must
obtain energy
from other sources
 Can
be consumer or
decomposer
 Consumers
can be
herbivores, carnivores,
or omnivores
 Predators/Scavengers/
Parasites

Autotroph
 Can
make own energy
 Also
known as producer
 Gets
energy from the sun
 Makes
food through
photosynthesis
 First
organism in food
chain
 Gets
100% energy since
all energy comes from
sun – no energy is lost
Do Now:
What is a food web?
•It’s a connection of different food chains.
Target Goal
SWBAT
construct a food web
of the Mojave Desert and
label all the organisms using
vocabulary words.
Make a food web of organism
found in the Mojave Desert
 Work
in groups of 4 on butcher paper
 Everyone must contribute to poster
 Groups must present their poster and
complete individual assignment.