WEBQUEST: Geologic time
WEBQUEST: Geologic time NAME________________________pd__
Check off each step as you do it. Turn in when completed.
_____STEP 1.
Type this address:
When you get there, you should see the words “STUDENT START” near the top of the screen. Click on “STUDENT START”
_____STEP 2.
Read the first screen, then press “NEXT”
If the history of earth was a book, where each page represented one year, how many pages long would it be?
__________________________ pages.
_____STEP 3.
Continue to click through, pressing “MORE” or “NEXT” to move on. Read all the information you read until you get to the bookmarks in the book.
_____STEP 4.
Once you reach the bookmarks, click on each one to get information about them. Write what happens at each bookmark below. Click “NEXT” when you are done.
|Bookmark # |How many years ago? |What happened then? |
|1 | | |
|2 | | |
|3 | | |
|4 | | |
|5 | | |
|6 | | |
_____STEP 5.
Read and click “NEXT” until you get to the screen showing events happening within the past 100 years. Put the events in order. Write down the correct order here. Note that you will only be able to fill out the “INVENTION OR EVENT” column. You cannot fill out the “ABSOLUTE TIME” at this point.
|Time of Event |Invention or Event |Absolute Time of Event |
|Most Recent | | |
| | | |
| | | |
| | | |
| | | |
|Earliest | | |
_____STEP 6.
Click “MORE” after you have put the events in order. Read the screen, then press “NEXT” to go on. Complete the chart from STEP 5 by clicking on each picture to get an absolute time.
_____STEP 7. Click “MORE” and “NEXT” until you get to put major events in Earth’s history in order. Once you have them in order, fill out the “FOSSIL OR ANIMAL” part of the chart below.
|Time of Event |Fossil or Animal |
|Most Recent | |
| | |
| | |
| | |
| | |
| | |
|Earliest | |
_____STEP 8.
Click “NEXT” and “MORE,” reading the given information on each screen. Click on the rock layers as directed, and answer this question:
WHAT DOES THE LAW OF SUPERPOSITION SAY?____________________________________ ________________________________________________________________________________________
_____STEP 9. Click on “MORE” and “NEXT” until fossils appear in the rock layers. Draw each of the four fossils shown, write their name, and when the existed.
|Fossil Name and Time |DRAWING |
|NAME | | |
| | | |
|TIME | | |
|NAME | | |
| | | |
|TIME | | |
|NAME | | |
| | | |
|TIME | | |
|NAME | | |
| | | |
|TIME | | |
______STEP 10. Answer the question about fossils and relative time, then press “NEXT”
Read through the screens, and answer the following question:
WHY DOES RADIOMETRIC DATING WORK?_______________________________________ _______________________________________________________________________________________
_____STEP 11. Read through the screens until you find the age of the fossil layer we are trying to identify.
WHAT IS THE AGE RANGE?______________________________________________________
_____STEP 12. Read the information and click through the screens until you see this diagram. Fill in any blanks you see. Using the chart below and the information gained by clicking on each section on the website, answer the following questions.
1. Put these measures of time from largest to smallest:
Era, Period, Eon.
_______________,______________,_____________
2. In what era did single-celled organisms like bacteria form?
__________________
3. When did the Phanerozoic Eon begin? _______________
Did it end?___________________
What defines the Phanerozoic Eon?_______________
4. For each of the following, say what the name means and what organisms existed during the Era:
Paleozoic:__________________________________
___________________________________________
Mesozoic:___________________________________
___________________________________________
Cenozoic:___________________________________
___________________________________________
5. In what Period do fossils from most major animal groups first appear? __________________________
6. In what Period did birds, reptiles, and animals begin reproducing on land?___________________________ What characteristic allowed this to occur?____________________
7. In what period did Pangaea come together?____________________________
8. What marks the end of the Paleozoic Era, and the end of the Permian Period?________________________
9. In what period did large, herbivorous and small carnivorous dinosaurs live? ________________________
10. What period has large land mammals and alternating periods of ice ages and warmer interglacial periods?_____________________
_____STEP 13. Click “NEXT” to take a quiz on what you’ve learned. Write down the correct answer (not just the letter!) for each question.
(1) Scientific evidence suggests that the Earth is:
(2) Evidence for past events in Earth's ancient history are provided by:
(3) The Law of Superposition allows us to determine:
(4) Radiometric dating allows us to determine:
(5) The divisions of time in the Geologic Time Scale represent:
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