| ammonia |
the gas with a strong smell that is formed by combining nitrogen and hydrogen. Ammonia is used to make refrigerators cold and in making fertilizers. [1/2 definitions] |
| amphibian |
a small animal that spends part of its life cycle in water and part of its life cycle on land. Amphibians hatch in water and breathe with gills. Then they develop lungs so the adults can breathe air. Amphibians are cold-blooded animals with skeletons inside their bodies. Frogs, toads, and salamanders are amphibians. [1/2 definitions] |
| Antarctica |
Antarctica is one of the seven largest areas of land on the earth. These areas of land are called continents. The continent of Antarctica is very cold all year round. |
| appear |
When someone appears a certain way, it means they look or seem that way. If someone appears cold, they look as if they are cold. If an animal appears to be hurt, it seems to be that way. It might not really be hurt, but we think it is because of the way it is acting or because of the look of its body. [1/3 definitions] |
| arctic |
(often capitalized) of or having to do with the region around the North Pole. [2/3 definitions] |
| Arctic Ocean |
The Arctic Ocean is one of the five oceans of the world. An ocean is a large body of salt water that covers a very large part of the earth. The Arctic Ocean is in the most northern part of the world and it is very cold and icy. If you look at a map, it is above Canada, Russia, and other far northern countries of the world. |
| Argentina |
Argentina is a country in South America. Some of its neighbors are Chile and Uruguay. Most of Argentina has a climate that is good for growing crops and raising cattle. The southern part of Argentina is very cold, though. This part of Argentina is not far from Antarctica, and it is home to seals, sea lions, and penguins. |
| bear2 |
A bear is a large, powerful animal with thick fur, sharp claws, and a short tail. Bears usually live in the forest or in cold areas of the world. Most people are afraid of bears because they can be very dangerous. Some kinds of bears are black bears, grizzly bears, and polar bears. |
| bite |
When the wind bites, it means that the wind hurts or stings because it is very cold. [1/4 definitions] |
| bitter |
uncomfortably cold or harsh. [1/3 definitions] |
| bleak1 |
bare, cold, or not protected from the weather. [1/2 definitions] |
| cardinal |
A cardinal is a bird that is native to North America. It is easy to recognize a male cardinal because it has bright red feathers and a kind of black mask around its beak. The adult female cardinal is brown and olive green with bits of red showing through. Cardinals can often be seen in the winter in places where it's cold. [1/2 definitions] |
| caribou |
A caribou is a kind of deer. Caribou have long legs and a long neck. They live in very cold parts of North America, mostly in Canada and Alaska. A caribou is really the same as a reindeer, but caribou is the name people use for reindeer that live wild in North America. |
| catch |
When you catch a cold or flu, it means that you start to get sick with one of these things. [1/8 definitions] |
| Celsius |
When we use the word Celsius, we are talking about a system people can use when they measure temperature. In most countries of the world, people use this system called Celsius. In America, though, people use a system called Fahrenheit. When you see the letter C after a temperature, as in 22� C, the C stands for Celsius. When it is 22 degrees Celsius outside, the weather feels warm but not hot. It's a nice day to go to the park and play. When it is 22 degrees Fahrenheit, it's quite cold, maybe snowing, and you need a warm jacket. |
| chill |
a feeling of cold and shivering caused by lowered temperature. [3/6 definitions] |
| chilly |
causing a cool feeling that is uncomfortable. [2/3 definitions] |
| cocktail1 |
an item of food or drink served before a meal, such as juice, mixed chopped fruit, or cold seafood with a sauce. [1/2 definitions] |
| cold |
When something is cold, it doesn't have much heat. We have to wear a lot of clothes when a room is cold, or if it's cold outside. [5 definitions] |
| cold-blooded |
having blood whose temperature changes with the temperature of the air or water. Animals such as fishes, snakes, and lizards are cold-blooded. [1/2 definitions] |
| Colombia |
Colombia is a country in South America. Colombia has beaches on both the Caribbean Sea and the Pacific Ocean. Colombia has many mountains too, but the weather in Colombia is not too cold or too hot. Coffee plants grow in Colombia, and many kinds of fruits grow there too. People in Colombia speak Spanish. |