Open NetSchool:  Title your next journal page “10% Rule Activity”  Read over the instruction slide and wait for instructions. February 22 nd No warm-up

10% Rule Paper Lab Activity Each person gets a picture card. Stand in the correct order for your food chain (start with the card that has where the energy originates.) – In your notebook, draw and label this food chain. The paper strip represents “Energy” 1.The person that has the Sun card will hold the energy. 2.The sun hands the whole energy strip to the Producer. This whole strip represents the producer getting 100% of the energy from the sun. With your group, discuss and write down at least 3 things the producer will do that will require energy. 3.CUT the energy strip at 90 cm. It has been used by the producer and is no longer available. The remaining 10% of the energy is stored in the producer and will be passed on when it is consumed) 4.First level (primary) consumer takes the 10 cm energy strip by consuming the producer. In your journal, discuss and write down at least 3 things this consumer will do that will require energy. 5.CUT the energy strip at 9 cm. It has been used by the primary consumer and is no longer available. The remaining 10% (1 cm) is stored in this consumer and will be passed on when it is consumed) 6.Repeat the process for the secondary and tertiary consumers. Each time you will use the 10% rule. Remember to record /sketch all steps in your journal listing each time 3 activities this consumer does that would require energy use. Write a conclusion as to why your group thinks there are less consumers as you go higher up the food chain or energy pyramid and include an estimation of how much energy remains for decomposers.

February 22 nd Open “10% Rule Paper Lab Activity” NetSchool – Remember to record in your journal for each step – Write a conclusion as to why your group thinks there are less consumers as you go higher up the food chain or energy pyramid and include an estimation of how much energy remains for decomposers. Open “Energy Pyramid Diagram” on NetSchool – Follow instructions for Steps 1-3

Open NetSchool Energy Pyramid Diagram Turn your notebook sideways and draw this energy pyramid (it needs to have 4 sections as show)

Step 1: Copy this information to label each level with the type of organism (producer, 1 st level consumer, etc.) and amount of energy at each level. Producers 1 st Level or Primary Consumers 1000 kcal 100 kcal 10% 10 kcal 10% 1 kcal 10% 2 nd Level or Secondary Consumers 3 rd Level or Tertiary Consumers

Step 2: Create a food chain that includes a producer and 3 levels of consumers. Write the name of the organisms in your food chain to the right of the pyramid where the red lines are at.

Step 3: Illustrate (draw) the organisms from your food chain in the energy pyramid. (color not required) Where is most of the energy? What happens to the other 90%?