planets
Periodic Tables
100

What is the inner planet is far from the sun?

Mars

100

What is the symbol for Iron 

Fe

200

What are the Inner planets?

Mercury,Venus,Earth,Mars

200

What Is the element has H as the symbol

Hydrogen 

300

What keeps the planets in orbit?

Gravity 

300

How many elements are there?

118

400

What two planets can be called Ice Giants?

Uranus and Neptune

400

H2O represents-

Water

500

What planet has 95 moons?

Jupiter

500

If humans breath in oxygen then what do they breath out?

Carbon