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Tuesday, April 30, 2013
Friday, April 19, 2013
GPS: Global Positioning System - Danesha
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GPS: Global Positioning System
by Jeanne Sturm
Review by Danesha
People love to explore, that's why we need a GPS. Hey, do you know what GPS stands for? It stands for Global Positioning System. They use satellites and monitoring stations and receivers to tell where you are. Guess who came up with this? Our own government! Isn't that cool? The military used it, but soon it was released to the public. It's used by fishermen, hikers and all types of people. In the early days, people used the stars and the sun to tell where they were. Do you know how to use the sun to tell where you are? You can tell where you are by where the sun is in the sky!
The Properties of Solids - Katimala
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The Properties of Solids
by Marylou Morano Kjelle
Review by Katimala
There are three basic states of matter; liquids, solids and gasses. On Earth there are more solids than gasses or liquids. The molecules of solids are locked tightly together, but the molecules of liquids and gasses move around more freely. Solids have no flow because a solid keeps its shape.
I recommend this book for people who want to read about solids.
Monday, April 8, 2013
The Declaration of Independence - Shanesa
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The Declaration of Independence
by Michael Burgan
Review by Shanesa
On June 7, 1776, members, or delegates, from the thirteen American colonies gathered in Philadelphia. they met at the Pennsylvania state house, known as Independence Hall. These men formed the 2nd Continental Congress. They were rebelling against King George III and Britain. America was deciding whether to declare it's independence. As the years passed, things in Britain got worse. Thomas Jefferson was the main author of the Declaration of Independence. The Declaration was signed on July 4th, which we now know as Independence Day.
I recommend this book to anybody who wants to learn about the Declaration of Independence.
Transfer of Energy - Alyssa
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Transfer of Energy
by Simon de Pinna
Review by Alyssa
In this book they talk about all the different types of energy and how they transfer. Energy is everywhere. It makes things move and takes many forms.
You get energy from the food you eat. Some machines, such as cars or stoves, get their energy from gasoline or natural gas. Food, such as meat, gives you all the energy you need to keep warm and move around.
Light and energy travel in waves, as do other forms of energy, such as radio waves, infrared and ultra-violet waves and microwaves. Without light energy we wouldn't be able to see anything. An object becomes visible only when light from the sun or another source of light, such as a flashlight, bounces off the object and enters our eyes. When you look out the window, you can see whatever is on the other side, even though there is glass between.
Transmission takes place when light waves hit a material and continue on through. Have you noticed that on a sunny day, the dark asphalt gets hotter than the lighter cement curb or sidewalk? Both are on the direct path of the sun's energy, but the asphalt absorbs more light energy.
Heat radiation, or infrared radiation, is the form of heat energy that can travel through the vacuum of outer space as electromagnetic waves. Potential energy is another way of saying "stored energy".
I would like to recommend this book to anybody who wanted to get further knowledge on what are the different types of energy transformations and how they work. Also the age group I would recommend this to is middle school and high school.
Countries in the News: Mexico - Shanesa
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Countries in the News: Mexico
by Kieran Walsh
Review by Shanesa
Mexico is a country just south of the United States. It comes in contact with Texas, New Mexico, Arizona and California. The two major bodies of water that surround Mexico are the Pacific Ocean and the Gulf of Mexico. One of the world's famous rivers known as the Rio Grande, flows right through Mexico. Mexico's climates are warm. During the months of April and May, the temperature hovers around 80 degrees.
The capital of Mexico is Mexico City. Not only is it one of the world's largest cities, it is also known as one of the oldest. Mexico city was built on top to the ruins that were once known as Tenochtitlan.
Out of the Mexicans that live in Mexico, 60% of them are Mestizos and 30% of them are Amerindra.
Everywhere you go, you'll hear different types of music. Out of all the known music, you will hear mariachi the most. Bull fighting is known as the most popular sport in Mexico. Mexico also has special celebrations for the following events in history. Cinco de Mayo, the celebration of their victory against France. Dieciseis de Septiembre is the celebration of winning the war against Spain for their independence.
I recommend this book to all the people in the world who want to learn more about other countries and to those who want to know what other cultures are like. I recommend this book for ages 9 and up.
Economies Around the World - Alyssa
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Economies Around the World
by Gail Fay
Review by Alyssa
Every country in the world has an economy. Gross domestic product (GDP) measures the strength of a country's economy. The dollar amount is the value of all goods and services produced within a nation in one year. A higher GDP means the country is using its resources effectively to make a lot of products. It also means the country has consumers who have capital resources to buy what is produced. A lower GDP means either the country is not using its resources effectively, or the country has very limited natural, capital or human resources to work with.
I would recommend this book to anyone who would want to know the full background on what economies are all around the world. This book is recommended for high school students.
Solar Energy - Na'Daisa
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Solar Energy
by Chris Oxlade
Review by Na'Daisa
Energy makes everything in the universe happen. Lights in cities use energy. Energy comes from energy sources. The most common energy sources are oil, coal and natural gas; which are known as fossil fuels. Solar energy is energy from the sun.
We use a staggering amount of energy. As the population grows, we will need more energy.
Nuclear reactions happen in the center of the sun. The reactions give out huge amounts of energy. It is given out into space in the form of radiation. The main types are light and heat. Heat and light from the sun travel as rays. Heat rays from the sun that hit Earth's surface makes the surface warm. The heating effect is also greater in summer. The warm surface of the Earth heats the air above it. This heat makes the air swirl around, which creates wind and rains.
Find It: Searching for Information - Shanesa
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Find It: Searching for Information
by Miriam Coleman
Review by Shanesa
Need help finding ways to look for information? Try the internet. You can download, search and more. You can also use an almanac. An almanac is a book of facts. You can also find information by observing. Research lets you find information. There are many ways to find information.
I recommend this book to anybody who wants to learn about things that can help with research. I recommend it to children ages 13 and up.
Reducing Air Pollution - Na'Daisa
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Reducing Air Pollution
by Jen Green
Review by Na'Daisa
The air in Earth's atmosphere is vital to living things. Nature can produce some pollution, but people and their machines also cause much of the pollution that harms the air and damages the natural world.
A layer of gas called Earth's atmosphere surrounds our planet like a blanket. The main gas in the atmosphere is nitrogen. The concentration of the different atmospheric gases is uneven and stronger near Earth's surface than gas concentrations higher up.
Polluted air harms life on Earth. Most polluted air comes from vehicles such as buses, cars and airplanes. Many scientists believe that air pollution is changing our weather patterns and climate.
Natural cycles such as plants and animals, help maintain the balance of gases in the air. Plants add oxygen to the air as they make their own food in a process called photosynthesis. They absorb carbon dioxide gas, water and minerals and make sugar using sunlight.
Plants release oxygen as a waste product. Animals breathe in oxygen and breath out carbon dioxide.
Korean War Memorial - Shanesa
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Korean War Memorial
by J.S. Burrows
Review by Shanesa
Eight years after World War II, the soldiers returned from the Korean War. Everybody had forgotten about the Korean War. Years later, people began to realize that they never gave appreciation to the people that served in the Korean War. The people, therefore, made a memorial site in Washington, D.C. called The Korean War Memorial. The Korean War Memorial is visited by thousands of people.
I recommend this book to people who like to learn about history. Children from ages 12 - 15 in grades 7 - 9 would appreciate this book.
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