Which of these is a natural resources?

Which layer is shown in red?

Which layer is made of "flowing" solid rock (think clay or pudding)?

Which layer of the Earth is the THINNEST?

Which layer is the hottest?

Which is the process that breaks up rock on Earth’s surface?

Geologists have classified rocks into three major groups of rocks which are:

Any rock that forms from another rock as a result of changes in heat or pressure (or both) is a:

A rock that forms from many small fragments of other rocks is a(n)

Where is magma?

How is Pumice used?

Rocks formed from cooling lava and found at the base of an inactive volcano.

How does freezing water cause the weathering of rocks? The freezing water—

A metal statue slowly turning green after years of being outside is an example of:

The air is mainly made up of ........

Plants use what gas in photosynthesis?

What gas do animals use from the air?

What gas in the air is causing global warming?

What layer protects us from the sun's harmful rays?

What do we call harmful gases in the air?

Combustion is another word for _______________.

What does not produce carbon dioxide?

Bacterias that decompose dead plants release _____________ back into the atmosphere.