Front

Math: Sequence 1,1,2,3,5,8,13...

Back

Fibonacci 斐波那契

Front

Biology: Plant cell has something around it that animal cell lacks.

Back

Cell wall 细胞壁

Front

Geometry: Common name for a regular hexahedron?

Back

Cube 立方体

Front

Earth Science: Most abundant element in Earth's atmosphere?

Back

Nitrogen 氮

Front

Math: Line segment from circle center to edge?

Back

Radius 半径

Front

Electromagnetic spectrum: radiation with shortest wavelength?

Back

Gamma rays 伽马射线

Front

History: Year World War I began?

Back

1914 年

Front

World's highest mountain?

Back

Mount Everest 珠穆朗玛峰

Front

Physical Education: Agility?

Back

The ability to quickly change direction during activity.

Front

Would you rather know the history of every object you touched or talk to animals?

Back

Talk to animals.