Sample lesson

General knowledge

Three short lessons on science, mathematics, and geography.

A planet with a distinctive colour

Mars is known as the Red Planet. Iron oxide on its surface gives it a reddish appearance. The same kind of chemical change gives iron rust its familiar colour.

Three sides and three corners

A triangle has three straight sides and three corners. It can be tall, wide, small, or turned in any direction. Its size and orientation do not change the number of sides.

A world of water

Oceans are vast bodies of salt water. Earth has five named oceans: the Pacific, Atlantic, Indian, Southern, and Arctic. The Pacific is the largest.

Practice questions

Try five simple general knowledge questions with instant feedback. No account needed.

Try the practice test

Back to Home