APPLICATIONS & INVESTIGATION IN EARTH SCIENCE



APPLICATIONS & INVESTIGATIONS IN EARTH SCIENCE NAME: ______________________________

EXERCISE 20 CLASS: ______________________________

RESPONSE FORM DATE: ______________________________

1) Using the information at this U.S. Naval Observatory Web site, determine each of the following for your location on the date and/or time indicated.

a) Today's time of sunrise/sunset at your location.

b) Today's time of moonrise/moonset at your location.

c) What percent of the Moon's visible disk will be illuminated tonight?

d) What is the current phase of the Moon? View the virtual phase of today's Moon here.

e) Use this Search Engine to research the differences between a partial eclipse, annular solar eclipse, penumbral lunar eclipse, and total eclipse. Then, using the information at the Naval Observatory Web site, list the date, type, and location of the upcoming lunar and solar eclipses.

2) Using the virtual Moon phase calculator at this U.S. Naval Observatory Web site, determine the phase of the Moon at your location at 8 P.M. local time, at two day intervals, for the next ten days. Describe the changing phases in the following space.

(NOTE: Print and attach copies of each phase diagram to this form.)

3) Referring to the information at this Web site by Alwyn Botha, describe the meaning of lunar features referred to as 1) rima, 2) catena, and 3) dorsa. Examine at least one photograph of each type of feature and list the name of at least one example with each description.

(NOTE: Print and attach a copy of each feature to this form.)

4) The possibility of ice on the Moon has received considerable attention in the scientific community. Using a search engine such as Google and/or Scirus, research lunar ice and prepare a short news article describing the implication(s) of such a discovery.

5) If you have completed the impact crater experiment in Exercise 20 of the lab manual, use the information at this Web site prepared by Professor Richard Harwood at Blackhawk College to answer the following questions.

a) Using the formula at the site, calculate the impact velocity and energy released for one ball at each of the three drop heights.

b) Using the formula at the site, calculate the impact velocity and energy released for several balls of various mass at the same drop height.

c) Write a statement that compares the size of a crater to the amount of energy released by a falling ball.

6) Examine NASA's Solar Data Analysis Center Web site. Then, using the information at the site, answer the following questions.

a) What are some of the existing and new solar missions currently in progress? In particular, what are the objectives of the TRACE and SOHO missions?

b) What was the date and time of the most recent C Class solar flare observed by TRACE? Write a brief description of the event.

7) Use the information at NASA's SOHO Web site and Peter Meadow's Solar Observing site to answer the following questions.

a) After you examine the sunspots image, prepare a brief news release describing the current activity.

(NOTE: Print and attach a copy of the sunspot image to this form.)

b) Review the information on the sunspot cycle via the links at the bottom of the sunspots page.

Describe the pattern of sunspot activity over the past twenty years.

What is your prediction for sunspot activity over the next ten years?

c) Using a search engine such as Hotbot and/or Yahoo, research the term solar wind.

According to the information at the SOHO site, what is the current speed and density of the solar wind?

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