Name: ________________________________________________ Date: __________________ Period: ______

Time Traveler’s Fossil Dig Site

Time Period Life Forms Description FossilsTertiary - Quaternary

Mammals, flowering plants, grasses, birds

Permian - Cretaceous

Reptiles, dinosaurs, turtles and crocodiles, flowering plants

Devonain - Carboniferous

Ferns, cone-bearing plants, fish, amphibians

Cambrian - Silurian

Single and complex single-celled organisms, Sponges, Trilobites, Clams, Spiders, Mosses

Precambrian Microscopic or single-celled organisms, Bacteria, Algae, Jellyfish, Sea Pen

QUESTIONS1. Which time period in the fossil dig site above shows the most complex organisms?

2. Which time period shows the most simple organisms?

3. Write the time periods in chronological order (oldest to youngest):1. 2. 3. 4. 5.

4. Write a paragraph to explain the scientific evidence that you used to trace the chronological order of the fossil dig site. Please make sure you have a topic sentence and a concluding sentence. Your explanation must include the following terms: complexity, rock layer, fossil record. Please underline the words where you use them.

RUBRIC4 3 2 1 0

Paragraph includes an introductory sentence and a concluding sentence.

Paragraph includes an introductory sentence and a concluding sentence.

Paragraph includes an introductory or concluding sentence, but not both.

Paragraph structure was not clear and sentences were not related.

Less than a paragraph written.

Uses all 3 vocabulary words in a way that makes their definitions clear.Refers to specific evidence from the fossil dig site.

Uses 2 vocabulary words in a way that makes their definitions clear and refers to evidence from the fossil dig site, OR used all 3 words correctly but does not refer to evidence from the dig site.

Uses 1 word correctly and refers to evidence from the fossil dig site, OR uses 2 words correctly and does not refer to evidence from the fossil dig site.

Uses 1 word correctly but does not refer to any evidence from the fossil dig site, OR uses none of the vocabulary words but does refer to evidence from the fossil dig site.

Not related to the question at all.

Time Traveler’s Guts DiscussionSomewhere in the next questions, make sure you use the following words. Words may have to be used more than once:

Passive Transport Active Transport Digestive System Energy

5. MOST SIMPLE: How do single-celled organisms get their food? Explain:

6. MORE COMPLEX: What is released when cellular respiration breaks down and rearranges those food molecules inside the cell?

7. MORE COMPLEX: Which body system provides sugar to our bloodstream?

8. MOST COMPLEX: How does this system work? What are some differences in this system between different animals you observed last week?