| adobe |
Adobe is a type of building material that is made from a mixture of clay and straw. The mixture is shaped into bricks and dried in the sun. |
| alga |
"Alga" is the singular form of the word "algae." Algae are living things that live mainly in water and make their food by using light from the sun. Algae are similar to plants, but they are not usually considered to be plants because they are different in some ways. For example, algae don't have roots and leaves like plants do. Most forms of algae are very helpful for animals and people. Seaweed is a kind of algae, which many people eat and can also be used in making other things. Fish and other water animals use algae for food. |
| algae |
Algae are living things that live mainly in water and make their food by using light from the sun. Algae are similar to plants, but they are not usually considered to be plants because they are different in some ways. For example, algae don't have roots and leaves like plants do. Most forms of algae are very helpful for animals and people. Seaweed is a kind of algae, which many people eat and can also be used in making other things. Fish and other water animals use algae for food. "Algae" is a plural word. The singular form is "alga." |
| asteroid |
Asteroids are chunks of rock that travel around the sun in the same way as planets travel around the sun. Asteroids can be as big as 600 miles across or as small as a single piece of dust. Most asteroids are found between the orbits of the planets Jupiter and Mars. |
| atmosphere |
The planet Earth is surrounded by gases. These gases all together are called Earth's atmosphere. As our planet travels through space and around the sun, its atmosphere stays with it. Other planets can have an atmosphere too, but Earth's atmosphere has just the right mixture of gases for humans to live. Our atmosphere lets us breathe and also protects us from the strong energy of the sun. [1/2 definitions] |
| beach |
A beach is the land next to a lake or ocean. A beach is often a beautiful place where people go to lie in the sun. Some beaches have a lot of sand and others are covered with many small stones or rocks. [1/2 definitions] |
| bleach |
When you bleach something, you make it white or lighter in color by using a chemical or the light of the sun. [1/2 definitions] |
| comet |
an object in space that travels around the sun. A comet is made up of dust and gas, and sometimes forms a long, bright tail. |
| earth |
(often capitalized) the fifth largest planet in our solar system and the third in distance from the sun. [1/4 definitions] |
| east |
the direction in front of a person facing the rising sun. [1/7 definitions] |
| flash |
When something flashes, it reflects light very brightly. When a piece of metal flashes in the sun, it means that it shines brightly in the sun. [1/8 definitions] |
| generate |
When something is generated, it is made or produced. Your body is warm because your body generates heat. People can generate electricity by using the power of things like windmills, waterfalls, or the sun. |
| hay |
When farmers hay a field of grass, they cut all the long grass and then let it dry in the sun. [1/2 definitions] |
| Jupiter |
the largest planet in the solar system and fifth in distance from the sun. Jupiter has sixteen moons and is more than one thousand times larger than Earth. [1/2 definitions] |
| Mars |
the seventh largest planet in the solar system and fourth in distance from the sun. Mars is known as "the red planet" because of its unusual color. [1/2 definitions] |
| mercury |
(capitalized) the planet of the solar system that is nearest to the sun. Mercury is the second smallest planet. [1/3 definitions] |
| moon |
the earth's natural satellite. It revolves around the earth from west to east in about 28 days. The moon joins the earth in its orbit around the sun. The moon does not give off light. Instead, its shine comes from the light it reflects from the sun. [1/2 definitions] |
| Neptune |
the fourth largest planet in the solar system and eighth in distance from the sun. [1/2 definitions] |
| north |
the direction to the left of a person facing the rising sun. [1/6 definitions] |
| orbit |
An orbit is one complete trip around a body in space, like the trip that the earth makes around the sun. [2/3 definitions] |
| parasol |
a light umbrella used especially by women to protect against the sun. |