_____ do not have collar bones, and their backbones are very flexible.

______ are the only birds in the world that can fly sideways, backwards, up and down, and even hover in mid-air

______ can run faster than horses, and males can roar like lions.

Our galaxy has about 100-400 billion stars.

The collapse of a large dying star leads to the formation of a _______.

Out of the Ancient Wonders of the World, the Great Pyramid of Giza, is the oldest and the one that remains mostly intact.

________ take 2 years to grow.

__________ is the only fruit whose seed grows on the outside.

There is an area around the Pacific Ocean where tectonic plates meet, called the Pacific Ring of Fire. It holds around 75% of the volcanoes on Earth.

_______ are part of the melon family.

______ once made bubblegum-flavored broccoli