8th Science assignments for Feb. 11 – 15
Q: Which of the following changes would you expect to cause the mating of on
year-old mice to become more common than the mating of three-year-old mice
even though it creates fewer offspring?
A. An increase in predation on the baby mice
B. An increase in the amount of food available to the mice
C. An increase in predation on mice that are one to three years old
D. An increase in the total size of the population
Monday
11th
Investigation: Changing Horses Midstream (Pg. 164 - 170)
Follow the procedure
Answer the wrap-up questions
Use Microsoft Excel to graph results
Standard: EALR 4: Life Science
Big Idea: Biological Evolution (LS3)
Core Content: Inheritance, Variation, and Adaptation
6-8 LS3 A-F
Q: Many small tropical frogs are poisonous. Many are also very colorful. Wha
the purpose of this color adaptation?
Tuesday
12th
A. A bright color makes them easier to see.
B. The same chemical that makes them colorful also makes them poisonous.
C. The color makes it easier for them to find mates.
D. The color helps them to blend in with their environment.
Finish Investigation from yesterday
Discuss as a class
Standard: EALR 4: Life Science
Big Idea: Biological Evolution (LS3)
Core Content: Inheritance, Variation, and Adaptation
6-8 LS3 A-F
Q: Fossil Fuels contain energy that was stored by living organisms millions of
years ago. Where did the energy that was stored originally come from?
A. The soil
B. Geothermal energy
C. Flowing water
D. The sun
Wednesday
13th
Reading: “Systems that Change Across Time” Pg. 171 - 175
Read
Answer Stop & Think questions
Discuss at the end of the period
Standard: EALR 4: Life Science
Big Idea: Biological Evolution (LS3)
Core Content: Inheritance, Variation, and Adaptation
6-8 LS3 A-F
Q: Many animals, from small insects to large mammals, hibernate during the
winter. An increase in which abiotic factor signals the animals that it is time to
come out of hibernation?
A. Increase in prey population
B. Humidity
C. Rainfall
D. Sunlight
Complete Virtual Lab -- Earthworm Dissection
Click on the link below to go to the virtual lab
Read the Question and answer on the left side of the screen
Scroll down: follow the Procedure step-by-step
Last step -- Answer Journal Questions
Answer these questions on paper and turn them in at the end of the perio
Thursday
14th
www.mhhe.com/biosci/genbio/virtual_labs/BL_14/BL_14.html
Watch the virtual frog dissection by clicking on the link below: This video is ab
eleven minutes
www.zerobio.com/videos/frog_dissection2.htm
Complete the virtual dissection of a fish by clicking on the link below and follow
the directions on the website.
http://library.thinkquest.org/05aug/00548/DissectionGame.html
Create a Data Table that shows the major parts of each organism that was
dissected
What are similarities and differences between the three organisms?
We are looking for specifics within the systems.....Differences in individual
organs? Within the organ system? Which ones are more complex? Why?
Be prepared to have a class discussion on this
Standard: EALR 4: Life Science
Big Idea: Biological Evolution (LS3)
Core Content: Inheritance, Variation, and Adaptation
6-8 LS3 A-F
Q: Prairie and grasslands once covered much of America. In such an
environment, which of the following abiotic factors is most directly affected by
biotic factors?
A. Sunlight
B. Nitrogen in the soil
Friday
15th
C. Rainfall
D. Wind
Science Video (Biodiversity)
 Complete worksheet while you are watching video
 Turn in at the end of the period
Standard: EALR 4: Life Science
Big Idea: Biological Evolution (LS3)
Core Content: Inheritance, Variation, and Adaptation
6-8 LS3 A-F