The ______________is the largest bird in the world

The __________________is the only bird that can fly backwards

The ________________ is the South American relative of the ostrich.

All fish are __________________

The breathing organs of fish are called____________

The ________________________helps the fish to stay at one level in the water without sinking.

For protection, most fish have a coat of hard, rounded disks called __________________.

The _______________is an example of a jawless fish.

A shark has a tough flexible skeleton made of ________________.

Most of the fish in the world are ________________.

The ___________________has both of its eyes on one side of its head.

The process in which a snake loses its outer skin is called ________________.

The fastest snake is the __________________________.

The ______________________helps the snake's sense of smell.

The tiniest snake in the world is the _______________________.

The poison produced by some snakes is called __________.

The largest poisonous snake in the world is the ___________.

The lizard that can squirt a stream of blood from its eyes is the _____________.

The lizard that is more at home in the water than on land is the ____________________.

The only lizards in the world that use poison to stun their prey is the _________________________ and the_________________.

The lizard that can change its color to match its surroundings is the _________________________.

Many lizards escape danger by ___________________.

The upper section of a turtle's shell is the _______________________.

The round tough layers of skin covering the turtle's shell is called the ___________.

Most turtles are _____________________.

One of the only reptiles that guard its eggs until they hatch is the ________________________.

The crocodilians that live only in the southeaster United States and in China are the __________________.

Amphibians protect themselves by secreting a ___________________.

Baby frogs and toads are called______________.

The process in which an animal changes form as it grows older is called _______________________________.

The only animal never bothered by the amphibian's slimy skin is the ___________________.

Young amphibians breathe with gills until they develop _____________________.

The basic cause of all weather is the ____________.

There are_________________major wind systems.

The amount of water vapor that the air can hold at a given temperature is called the ________________________.

A small piece of ice hat is tossed up and down inside a cloud becomes coated with several layers of ice and finally falls to the earth is called a ___________________________.

The plant closes to the sun and is only slightly larger than the moon.

This planet is the earth's twin and is the brightest planet in the sky.

The only planet with a bountiful supply of water and suitable for living things.

This planet is called the red planet, and the Viking spacecraft landed on this planet.

The largest planet, that has a great big red spot.

This planet has seven rings made up of ice particles and rocks.

This planet looks like it is tipped over on it's side and is four times bigger than earth.

This planet is almost the same size as Uranus. It has 8 moons and 5 rings circling around it although the rings are not seen.