Which element is more common on Earth? Platinum Mercury Gold Plutonium What is the first element on the periodic table? Hydrogen Oxygen Nitrogen Helium Which element is rarer to find on Earth? Copper Chlorine Titanium Iron True or False: Silicon is the second most abundant element on Earth.
It takes it only 88 days to go around the sun, so its year is 88 days long Venus Mars Earth Mercury What is the main element converted inside the sun's core? Hydrogen Copper Nitrogen Iron What is the surface of the Sun called?
Portuguese Nahuatl English Mayan Languages Which three elements are represented on the Mexico’s coat of arms on the national flag?