The largest frog in the world is called Goliath frog. Frogs start their lives as 'eggs' often laid in or near fresh water. Frogs live on all continents except Antarctica. Frogs belong to a group of animals called amphibians. 

Some scientists believe that the earth began billions of years ago as a huge ball of swirling dust and gases. If you dig in your backyard, don’t worry about running into the earth’s core. You’d have to dig a hole 4,000 miles (6,437 kilometers) deep!

Why do we might feel warmer wearing a dark-colored jacket than a light-colored one? . Dark colors  absorb light energy. Light colors and white reflect light energy. When light shines on your dark jacket, the jacket fabric absorbs light energy. The absorbed light energy causes electrons in the atoms of the jacket to vibrate. This activity releases heat energy, which makes the jacket—and you—warmer. That's why we like to wear more dark colors in winter and more light colors in summer.

The word "racecar", "kayak", and "radar" are the same
whether they are read left to right or right to left.
"a man a plan a canal panama"
spelled backwards is still

All the planets in our solar system rotate anticlockwise, except Venus. It is the only planet that rotates clockwise.

Do you know the names of the three wise monkeys? They are: Mizaru (See no evil), Mikazaru (Hear no evil), and Mazaru (Say  no evil ).