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The Veterans Day National Ceremony is held every year at Arlington Cemetery. The ceremony always starts at 11 o’clock. A wreath is laid on a special monument that honors soldiers. The Veterans Day Ceremony also includes a parade and speeches by important figures.

The fighting in World War I stopped on November 11, 1918. A year later, President Woodrow Wilson declared November 11th Armistice Day. He said that every year, Americans would honor and thank the veterans who fought. Armistice Day became a federal holiday in 1938.

Armistice Day became the holiday Veterans Day. Both holidays celebrated veterans. But while Armistice Day was only for veterans of World War I, Veterans Day is for all veterans of any war.

Across the country, people celebrate Veterans Day in different ways. Some schools and business close for the day or have a moment of silence at 11 o’clock. Groups may also organize parades.

Scientists at NASA, the United States space program, think that there is liquid water on Mars. Pictures of the surface of Mars showed wet-looking spots. Researchers used these pictures to figure out that liquid water exists there.

The ExoMars 2016 mission blasted off on March 14, 2016. The spacecraft is owned by Russian and European space programs. It left from the country of Kazakhstan. The ExoMars spacecraft has special tools to help scientists learn more about Mars.

Mars is a red-orange planet in our solar system. There are eight planets in the solar system that orbit, or travel around, the Sun. Mars is the fourth planet from the Sun.

Mars is farther away from the Sun than the Earth is. It’s much colder. Mars is 142 million miles from the Sun, while Earth is 93 million miles away. Even though Mars is smaller and colder than Earth, the two planets are similar. Both have seasons, like winter and summer.

Rhesus monkeys and baboons are part of a group called Old World monkeys. Like rhesus monkeys, baboons have tails. However, baboons usually weigh more than rhesus monkeys. Baboons live in Africa and Arabia, while rhesus monkeys live in Asia.

Scientists were preparing to send the first humans into outer space. However, they didn’t yet understand the effects that space would have on the human body. They didn’t want to put humans in danger. As a solution, they started by sending rhesus monkeys into space and studying the effects on them.

Rhesus monkeys are primates with brown bodies and red faces. They come from Asian countries, such as Afghanistan, Pakistan and India. They are very intelligent, and some have even adapted to live near humans. Rhesus monkeys are good climbers and swimmers.

In 1947, scientists first discovered the Zika virus in a rhesus monkey in Uganda. A year later, they learned that Zika was spread by mosquitoes. In 1952, the first cases of Zika in humans were found. The virus did not make people very sick.

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The Olympic Games started in Greece 3,000 years ago. They took place every four years for hundreds of years. The modern form of the Olympic Games started in 1896. The best athletes from countries all over the world compete. In 2016, the Summer Olympics were held in Brazil.

Only men were allowed to compete in the original Olympic Games. These men had to be Greek, and they could not be slaves. Slaves, women and people from other countries were excluded from the games.

It takes a lot of food to feed all of the people who are part of the Olympic Games. It also creates a lot of leftovers. To reduce food waste, some famous chefs came up with a plan. They decided to use the leftover food from the Olympics to help feed the homeless. They cooked meals for the homeless using ingredients that would have been thrown away.

The Olympic Games always begin with an opening ceremony, a big show that often includes music and dancing. All of the countries that are playing in the games participate. Athletes march, wearing their countries’ colors.

a cause that led to piping plovers losing their habitats.

an effect of humans changing the level of water in piping plovers’ homes.

a cause that led to there being too many piping plovers.

an effect of piping plovers leaving their homes.

“He did not, but his inventions greatly changed the effect electricity had on people’s lives.”

“It used less power than existing models and became a success.”

“So Edison developed a new type of light bulb called an incandescent bulb.”

“The light bulbs that existed before Edison were not practical for most people to use inside their homes.”

In a rural community, there are not many lights from buildings to block the stars. As a result, you can see many stars when you look up at the night sky.

Urban and suburban communities both have stores, schools, banks, libraries and buildings. However, these things are more spread out in the suburbs than they are in urban communities.

The tallest skyscraper in the world is Burj Khalifa in a city called Dubai in the United Arab Emirates. It has 163 stories and is 2,723 feet tall.

People may move to the suburbs so that they can have more space but still enjoy the city. Suburbs are usually so close to a city that you can get to the city and back in the same day.

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