Proprie orange DS. Vocabulary: consumer, ecosystem, energy pyramid, equilibrium, food chain, population, predator, prey,
producer
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
The Food Chain Gizmo shows a food chain with hawks, snakes, rabbits, and grass. In this simulation, the
hawks eat snakes, the snakes eat rabbits, and the rabbits eat grass.
1. Producers are organisms that do not need to eat other organisms to obtain energy.
A. Which organism is a producer in this food chain?
B. Where does the producer get its energy?
2. Consumers must eat other organisms for energy. Which organisms are consumers in this food chain?
MOVE HAS
NODNEMOVE
Gizmo Warm-up
The SIMULATION pane of the Gizmo shows the current population, or number of
each organism in the food chain.
1. What are the current populations of each organism?
Hawks
Snakes:
Rabbits:
Grass
2. Select the BAR CHART tab, and click Play ( ). What do you notice about
each population as time goes by?

In this GIZMO, your job is to arrange the LARGE organs in order from beginning to end.

BEFORE you do this, look at each of the organs listed. Place your cursor over each organ to

learn more about it.

ACTIVITY A: BUILD A DIGESTIVE SYSTEM

Now it’s time to design and build your own digestive system!

Start with the LARGE organs tab to build a basic system.

Click on the SMALL organ tab and read about each part.

Click and drag each of the SMALL organs to the proper location.

Follow the directions below.

Question Type Your Response

Which organs allow nutrients to be

absorbed?

Which organ stores and compacts waste

before it is eliminated?

Which TWO organs help to break down food

mechanically (physically)?

Which muscle contains ACIDS to help break

down food chemically?

Which muscle contracts to move food from

the mouth to the stomach?

Explanation:

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.

the correct answer to this question is #5