(This activity works
well if conducted after the "Plants are Producers" activity). Discuss
with students how plants are able to make their own food energy from water,
air and sunlight. Ask students if they can make their own food energy like
plants. Ask them how they get their food energy. Introduce the concept
of consumers (organisms that get their energy and nutrients by eating other
organisms) to the students and explain that they, like other animals, are
consumers.
Divide the students into
five groups. Give each group a bag of items depicting food, such as potatoes,
lettuce, bananas, hamburgers, fried chicken. Have children identify each item.
Then ask the students, "If you were going to eat one of these items,
which would it be?" Have the students choose one item and record on paper
what they chose. Ask them to discuss if the food they chose came from a plant
or an animal. Have them record their response on their data sheet.
Introduce the concepts
herbivore and carnivore. Have students think about which food item they chose.
If they chose a plant item, tell the students that they are like herbivores.
If they chose an animal item, tell the students they are like carnivores.
Have them record on their data sheet if they are a herbivore or carnivore.
Have some of the students name out loud the food item they picked. Have the
rest of the class determine whether that student would be a carnivore or a
herbivore.
Have the students return
their food items to the bag. Have them pick out their two favorite food items
from the bag. Have the students write the two food items down on their data
sheet. Ask students to raise their hands if they picked both a plant and an
animal item. Explain the concept of omnivores.
Wrap up the lesson.
Review what consumers, herbivores, carnivores and omnivores are. Show pictures
of some familiar plants and animals and have students identify them
as producers or consumers. If the organism is a consumer, have the student
identify the organism as a herbivore, carnivore or omnivore. (Examples of
producers: dandelions, oak trees, grass, azaleas. Examples of herbivores:
cows, deer, grasshoppers, rabbits. Examples of carnivores: wolves, sharks,
owls, frogs. Examples of omnivores: Humans, raccoons, blue crabs, shrimp.)
Why do some animals have
sharp teeth, some animals have flat teeth and some have both? Is this a clue
as to whether they are a carnivore, herbivore or omnivore?
What would happen if
all animals were only carnivores?
In a community would
you have more plants or more herbivores? Would you have more herbivores or
more carnivores?