Grade 7 SCIENCE-worksheet

Dear Students,
Kindly print out and answer the following worksheets. To be submitted when classes resume.

Name:_______________________ Section: ___________________ Score:______________________

1. KNOWLEDGE:

A- Tell whether each living thing below is a producer, consumer, or decomposer.

a. apple tree - __________________________                   b. hawk - ___________________________

c. mushroom -__________________________                  d. carrot - ___________________________

e. dragonfly - __________________________                 f. bamboo - ___________________________

g. cougar - __________________________                     h. bacteria - __________________________

i. daffodil - __________________________                    j. pigeon - ___________________________

k. snake - __________________________                      l. catfish - ___________________________

B-Identify the:

1. Producers

2. Primary Consumers

3. Secondary Consumers

4. Herbivores

5. Carnivores

6. Omnivores

B-UNDERSTANDING

I-        For each biome, fill in arrows that trace the transfer of energy from the sun to a top predator.  Label the producer(s) and each order consumer and color all parts of the chain.

Given the illustration, answer the following questions:

1.       There are many more __________________ than there are primary consumers.

2.       ________________ eat other organisms.

3.       _________________ make their own food so they are also called ____________.

4.       Where does the energy come from for all organisms in a food chain or web?

5.       Use algae and water plants as the producers and create a food web with 8 consumers.

PROCESS/SKILLS:

Choose an ecosystem . After choosing your ecosystem, put as many organisms as you can at each trophic level on the pyramid below.

ECOSYSTEM ___________________