Monday, February 27, 2006

Bao Minh

Try this one and let me know how it goes:
http://www.msichicago.org/ed/env/envsample.html

You might want to end the experiment by asking questions such as:
What will happen if acid rain was to increase in a certain area? How will it affect vegetation as well as soil and animals.......
Or any other environmental questions you can come up with.

Good Luck!!

More Science Ideas

Click on the link in order to get more science ideas. Some are really simple, I suggest you stay away from them. Have fun!!
http://pbskids.org/zoom/activities/sci/

Friday, February 24, 2006

Winter Break Extra Credit Assignment #2

Please work on the following assignment for extra credit. This is due Monday 2/27/2006.

Topic: Latitude and Longitude
DIRECTIONS:

Read this entire page before you begin!

Click on the attachment and print it before answering the question
http://www.enchantedlearning.com/geography/label/latlong/

Answer these questions:
1) What is the purpose for having a latitude and longitude coordinate system?
2) Tell what direction latitude lines run (in other words, use the words: north ,south, east, or west).
3) What is another name for latitude lines?
4) Complete: Latitude lines go from 0 degrees to ____ degrees.
5) Tell what direction longitude lines run.
6) What is another name for longitude lines?
7) What is the name of the 0 degree longitude line?
8) What is the highest degree a longitude line can be?
9) What is that line called (the one with the highest possible number)?
Bonus question for extra points.
10) Explain why the degrees of latitude and longitude are further divided into minutes and seconds.That's all there is to it!

Read the entire page, then answer the questions below.Type or neatly write the answers to all questions on lined paper, using blue or black ink.Be sure to put a proper heading on your paper and submit your work on time.

Good Luck!
Mr. Fayad

Tuesday, February 21, 2006

Saturday, February 18, 2006

The Water Cycle Animation

http://earthguide.ucsd.edu/earthguide/diagrams/watercycle/watercycleq.html

Winter Break Extra Credit #1

This is a sample quiz about the atmosphere as well as other weather factors. I will be counting this as extra credit that is due on Monday February 27, 2006.

Question 1
The change from liquid water to water vapor is called
a) sublimation b) condensation c) precipitation d) evaporation

Question 2
The four layers of the atmosphere, in their correct order from bottom to top is
a) stratosphere, troposphere, mesosphere, thermosphere
b) thermosphere, mesosphere, stratosphere, troposphere
c) troposphere, stratosphere, mesosphere, thermosphere
d) mesosphere, stratosphere, troposphere, thermosphere

Question 3
As a parcel of air moves up a mountainside and expands, the temperature of the air will
a) decrease b) increase c) remain the same

Question 4
The instrument used in class to measure relative humidity is called a
a) barometer b) anemometer c) psychrometer d) thermometer

Question 5
The curved path of planetary winds is caused by earth's:
a) rotation b) revolution c) gravity d) magnetic field

Question 6
Water vapor in the air condenses when the air temperature lowers below the
a) condensation point, b) precipitation point c) dew point

Question 7
What is the approximate dew point temperature when the dry-bulb temperature is 24°C and the wet-bulb temperature is 18°C?
a) 6°C, b) 12°C , c) 14°C d) 17°C

Question 8
At sea level, as the temperature of the atmosphere decreases, the air pressure usually
a) decreases b) increases c) remains the same

Have a great break!!!!
Mr. Fayad

Saturday, February 11, 2006

Science Fair Ideas

Please use this link to find a project for the science fair:
http://www.sciencebuddies.org/mentoring/areas_of_science.shtml

Let me know what you come up with!!

Thursday, February 09, 2006

Reference Tables

Click on the attachment and use the tables to get the Relative Humidity and Dew Point of the previous activity.
http://www.nysedregents.org/testing/reftable/archreftable/pg12,13,14.pdf

Wednesday, February 08, 2006

Weather Question Extra Credit















Use the figure provided and your knowledge of earth science to answer questions 1 and 2.

1. Which statement best describes the relationship between relative humidity and air temperature as shown by the graph?
(1) Relative humidity decreases as air temperature decreases.
(2) Relative humidity decreases as air temperature increases.
(3) Relative humidity increases as air temperature increases.
(4) Relative humidity remains the same as air temperature decreases.

2. What were the relative humidity and air temperature at noon on this day?
(1) 47% and 32°F (3) 47% and 48°F(2) 65% and 32°F (4) 65% and 48°F

3. Which phase change requires water to gain 540 calories per gram?
(1) solid ice melting
(2) liquid water freezing
(3) liquid water vaporizing
(4) water vapor condensing

4. A student used a sling psychrometer to measure the humidity of the air.If the relative humidity was 65% and the dry-bulb temperature was 10°C,what was the wet-bulb temperature?
(1) 5°C (2) 3°C (3) 7°C (4) 10°C

5. Why are the beaches that are located on the southern shore of Long Island often considerably cooler than nearby inland locations on hot summer afternoons?
(1) A land breeze develops due to the lower specific heat of waterand the higher specific heat of land.
(2) A sea breeze develops due to the higher specific heat of waterand the lower specific heat of land.
(3) The beaches are closer to the Equator than the inland locationsare.
(4) The beaches are farther from the Equator than the inlandlocations are.

6. An Earth science student observed the following weather conditions in Albany, New York, for 2 days: The first day was warm and humid withsoutherly winds. The second day, the temperature was 15 degrees cooler, the relative humidity had decreased, and wind direction was north-west.Which type of air mass most likely had moved into the area on the second day?
(1) continental tropical (2) maritime tropical (3) continental polar (4) maritime polar

7. An air temperature of 95ºC most often exists in which layer of theatmosphere?
(1) troposphere (3) mesosphere(2) stratosphere (4) thermosphere

Tuesday, February 07, 2006

The Water Cycle Practice Questions

This is an extra credit assignment that is due on Monday 2/13/2006:

1. Water vapor that condenses on cool surfaces is:
a) Dew b) Rain c) Snow d)Sleet

2. Clouds are formed by:
a) cool air rising b) water vapor condensing c) lightning d) Snow

3. High, feathery white clouds made of tiny pieces of ice are called:
a) stratus b) cumulus c) cirrus d) nimbus

4. A puffy cloud that looks like cotton is called:
a) stratus b) cumulus c) cirrus d) nimbus

5. Water droplets that are too heavy to float make:
a) fog b) clouds c) rain d) dew

6. A cloud that forms just above the surface of the earth is called:
a) cumulus b) dew c) fog d) stratus

7. What clouds form in sheets or layers and spread out over the sky?
a) cumulus b) dew c) stratus d) nimbus

8. Moisture that falls to the ground is:
a) condensation b) evaporation c) precipitation d) clouds

9. Most of the earth's water is:
a) in the clouds b) in the ocean c) under the ground d) in holding tanks for us to use

10. Most of the water that evaporates on the earth comes from:
a) lakes b) ponds c) oceans d) creeks

11. Weather that is so dry that nothing can grow is called :
a) temperature b) cyclonic c) a drought d) a tornado

Please answer the questions and submit to me by Monday.
Mr. Fayad

Monday, February 06, 2006

Relative Humidity Answers

Click on comments for the answers.

Dew Point and Relative Humidity practice questions

These are practice questions for the Regents class. Calculate the relative humidity and the dew point of the following;I will provide the answers in the next blog:
1) Dry bulb temperature is 14ºC, Wet bulb temperature is 11ºC
2) Dry bulb temperature 20ºC , Wet bulb temperature 16ºC
3) Dry bulb temperature 28ºC , Wet bulb temperature 18ºC
4) Dry bulb temperature 8ºC , Wet bulb temperature 7ºC
5) Dry bulb temperature 16ºC , relative humidity is 38%, what is the wet bulb temperature?what is the dew point?
6) Dry bulb temperature 30ºC , relative humidity is 61%, what is the wet bulb temperature? what is the dew point?
7) Dry bulb temperature 4ºC , Wet bulb temperature 1ºC, what is the relative humidity? What is the dew point?

Friday, February 03, 2006

Wednesday, February 01, 2006

Steps to Prepare a Science Fair Project

1. Select a Topic: A Science Fair Project is a test you do to find an answer to a question, not just showing what you know about something.

2. Gather Background InformationGather information about your topic from books, magazines, the Internet, people and companies.Keep notes about where you got your information.

3. Scientific MethodState the Purpose of your experiment - What are you trying to find out?Select a variable (something you will change/vary) that will help you find your answer.State your Hypothesis - your guess about what the answer will be.Decide on and describe how you will change the thing you selected.Decide on and describe how you will measure your results.

4. Run Controlled Experiment and Record DataDo the experiment as described above.Keep notes in one place. Write down everything you can think of, you might need it later.

5. Graphs and ChartsWhat happened? Answer that question, then put the results in graphs and charts.

6. Construct an Exhibit or DisplayIt has to be neat, but it does NOT have to be typed. Make it fun, but be sure people can understand what you did.Show that you used the Scientific Method.

7. Write a Narrative Procedure. Follow the rubric provided for you in the Science Fair packet.

8. Practice Presentation to JudgesPractice explaining your project to someone (parent, friend, grandparent, etc.) This will help you be calm on Science Fair Day. The judges are very nice and will be interested in what you did and what you learned.

9. Come to the class, be ready and have fun!

Mr. Fayad

What makes a good science project?

What Makes a Good Project?
Here are some more thoughts:
1. You are interested in the topic - it's something you like to think about.
2. You can do a test to find an answer to a question.
A good Science Fair project is an experiment - that means it's a test to find an answer to a question you have. For example, if you are interested in bugs and you saw some ants moving real slowly once on a cold day, you might test to see what effect temperature has on the rate at which bugs move. You'd get some bugs, find a way to make their container a little colder than normal and measure how fast they moved somehow. Then you'd make their container a little warmer than normal and measure what happened then. Don't do demonstrations or simple reports - those don't use the scientific method. They are just showing what you know about something. For example, a diagram or model of something with no test/experiment.
3. You can do it with only a little help from parents, teachers and friends.
The reason to do a project is because it's fun and you will learn something you didn't know before. Having someone else help too much takes away some of your fun and you don't learn as much. Your project doesn't have to be perfect, just neat and following the scientific method. Don't be afraid to ask for help if you really need it.
4. It doesn't hurt or scare people or animals, including you.
It's not only a bad idea, it is also against the rules of our science fair and of the regional science fair to hurt or badly scare people or animals as part of an experiment. You also may not use dangerous materials in your project. Ask advice about this from your parents and teacher.
5. It's a project that, even when you are done with it, makes you think of new things you want to know.
One way to tell if you have a good project is to see if the results make you wonder about other things. Did doing the project, or reading or seeing what happened make you think of other questions you are curious about? That's a great project!

Science Projects Help

This is a link that will help you pick a project that is right for you. Please navigate through the science fair, science projects and science experiments until you find something you like. Make sure the concept you pick is challenging!!
http://www.homeworknyc.org/search.results.cfm?theme=default&querytopic=science%20projects