Delta formation

A delta is a landform, it is an area that looks like the Greek letter "delta"   (look at the picture), also it looks like a triangle. This area forms at the rivers' mouth, just where they meet the ocean. Erosion and deposition play an important role in "deltas" formation. Erosion moves the weathered materials (pieces of rock, sand, sediments, etc.) along the river, as it flows to the ocean. All these materials are deposited at the river's mouth forming this triangle or "delta". If you look at a delta from a plane, it will look similar to the roots of a plant. Here are some pictures which will give you an idea of what a delta is:

Here are a couple of videos which show how the Nile River's delta in Egypt and the Mississipi River's delta in The United States formed and how they look. Watch them, I think you will get a better idea about what a "delta" is:

http://www.youtube.com/watch?v=gmjjxxu7tWc

http://www.youtube.com/watch?v=t_IIA2o6-lk

MORE INFORMATION FOR YOUR SCIENCE PROJECTS

Here is some more information so you can complete the investigation process of your Science projects. Look at the topics and check the links.
States of matter: Liquid, gas and solid. This links includes games and activities as well as videos to help you understand better all about this physical property of matter:
 http://www.neok12.com/States-of-Matter.htm

This other site also has information that you can include in your investigation, don't forget to mention the web page:

http://www.chem4kids.com/files/matter_states.html

Here is another link which gives you information and investigation ideas on physical and chemical properties of matter, explore it:

http://david-r-wetzel.suite101.com/physical-and-chemical-properties-of-matter-a59494

Also visit:

http://www.chem4kids.com/files/matter_intro.html

Some Science games and activities

The way in which energy works is applied in a lot of different ways, for example the roller coaster, have you ever ridden on one? Here are some games to experiment with kinetic and potential energy to design a thrilling roller coaster ride, do you want to try?

http://kids.discovery.com/games/build-play/build-a-coaster

 

http://www.jason.org/digital_library/4851.aspx

 http://www.funderstanding.com/slg/coaster/

Also, you may want to try some of the games and activities in:

http://kids.discovery.com/activities

Enjoy the ride!!
 

Some tips for your Science project investigation.

For those having problems to find information for the Science Fair Project investigation part, I would like to recommend some good sources of information that I have found.
 Remember your investigation is what supports your hypothesis so it is very important that you take time to read carefully and understand what you read. 

1. Take notes of the most important things and of the facts that will help you explain your results at the end of the experiment. 
2. You need to check at least three different sources (books, magazines, web pages,etc.) 
3. When you check a book, you need to include the book's title, author, editor and the pages that you consulted. 
4. If it is a magazine, you need to include the magazine's name, volume, year and the title and author of the article you read. 
5. Finally, if it was a web page, you need to include the internet address where you got your information and the page's name. If the name of the author is mentioned, also include it.

The most important thing is that you learn something new about your project and that you can apply this information to your experiment so you can explain your results better.

Don't forget that your experiment must include:
1. A clear question with a measurable answer. It means that you should be able to measure your results in some way: distance, time, capacity, weight, size, etc.
2. Investigation that helps you answer the question and helps you support a hypothesis.
3. A hypothesis showing a cause-effect relationship.
4. Variables - things that you will change in your experiment.
5. Constants - things that will not change: example: same amount of water, same amount of light, same type of seeds, etc. 
6. List of materials.
7. Steps to follow.
8. Chart or table to record your observations.
9. Analysis of the data you recorded during your observations.
10. Conclusion, based on your results and investigation. Explain if your hypothesis was correct or not and why.


Remember the Scientific Method song at:
http://www.youtube.com/watch?v=eA86dYxrg4Q

Now, here are some useful links where you can find useful information. Remember READ and select only the information you NEED!


Air Pressure:   http://kids.earth.nasa.gov/archive/air_pressure/  This page is excellent and includes ideas for experiments and also some questions.
 http://www.physicalgeography.net/fundamentals/7d.html This page has lots of information and suggests other links that you can visit.
http://www.kidsgeo.com/geography-for-kids/0081-atmospheric-pressure.php 
At this page you will find information and a very nice video which also includes an idea to show how air pressure works. Good luck!

Density:  Visit the following page which shows a density scale for different liquids:
 http://www.stevespanglerscience.com/experiment/seven-layer-density-column
This page includes a problem, density measures for different liquids and other information:
http://www.edinformatics.com/math_science/dens_liquid.htm
At this page you can watch an interesting video about water density:
http://www.youtube.com/watch?v=Ak9CBB1bTcc


Magnetic force: Watch a video on what magnetism is and how it works:
http://www.youtube.com/watch?v=lMJtGXt3-vE
Magnetic fields: This video explains what a magnetic field is:
http://www.youtube.com/watch?v=uj0DFDfQajw&feature=fvsr
Compass: This video explains how it works:
http://www.youtube.com/watch?v=lSaXhVEE4oQ
 Also, you can check these pages about magnetism:
http://www.historyforkids.org/scienceforkids/physics/electricity/magnet.htm
http://science.pppst.com/magnets.html
http://www.explainthatstuff.com/magnetism.html


Nuclear energy: This page includes lots of information about nuclear energy and nuclear power plants: http://www.eia.gov/kids/energy.cfm?page=nuclear_home-basics
This page has simple and easy to read information: http://www.washingtonpost.com/lifestyle/style/explaining-nuclear-energy-for-kids/2011/03/15/ABhFsfl_story.html
Also check: http://www.kidcyber.com.au/topics/nuclearenergy.htm
You can also watch a video which explains where nuclear energy comes from:
http://www.youtube.com/watch?v=CQ55vYgbB1I


Why do some people attact mosquitoes? Watch this video: 
http://www.youtube.com/watch?v=VydZW47p-G0

Enjoy your work!

MOUNT ST. HELENS ERUPTION

Watch a video about the eruption of Mt. St. Helens in the United States. Describe some of the effects this disaster had on the surrounding ecosystems. Do you think it affected landforms? How?

http://www.youtube.com/watch?v=-H_HZVY1tT4&feature=related

Watch another video showing how this area looked 30 years after the disaster (2010), compare what you see with the previous video, how has it changed? How have landforms changed? How is the ecosystem different now?

 http://www.youtube.com/watch?v=mRDZbx3J5I0&feature=related

Read the story of Mt. Saint Helens eruption:

 http://www.ngdc.noaa.gov/hazard/stratoguide/helenstory.html


Go to the following link and observe how changes in the Mt. St. Helens ecosystem have occurred...


http://ngm.nationalgeographic.com/2010/05/mount-st-helens/blast-zone-animation


Below is a picture of how the area looked after the eruption:

LANDFORMS

First of all, I would like you to watch this beautiful video. As you watch it, answer the following questions in your Science notebook:

1. What is an "isthmus"?
2. What is a "bay"?
3. What is a "plateau"?
4. What is a "sand dune"?
5. What is a "delta"?
6. What is a "hill"?
7. What is a "plain"?
8. What is a "gulf"?
9. What is a "harbor"?
10. What is a "cliff"?
11. What are other landforms shown in the video?

Here is the link to the video:

 http://www.youtube.com/watch?v=6mVOY8y5gQ4

Also watch this:


http://www.youtube.com/watch?v=U84BbIRDyOA&feature=related


Now, watch the following video which shows how weathering changes landforms overtime. Water, wind, ice, etc. cause changes on rocks which eventually change their forms and sometimes their chemical composition, they become something different!! Watch carefully how it happens:


http://www.youtube.com/watch?v=Yp2ZW1xoBP0

Here is a page and some activities to learn about the landforms of the United States, go through them, do the puzzle and good luck!

 http://tapestry.usgs.gov/default.html

For more information about landforms, check the following page, it has good information as well as pictures:

 http://www.edu.pe.ca/southernkings/landforms.htm


Find information that describes the following landforms:


-Valleys
-Plateaus
-Loess
-Glaciers

SCIENTIFIC METHOD QUIZ

Try the quiz on the scientific method.
http://mset.rst2.edu/portfolios/l/lautz_s/Science%20Fair%20Handbook/SFquiz.html