This is NASA's website about climate change. It has sidebars that you can click/tap on. You can find out the causes and affects of climate change, evidence of climate change, etc. There is also a tab where you can find other useful websites about climate change.

Good website about petrified wood.

This is another website I found about Edmontosaurus.

This is a fairly small PDF about Edmontosaurus. It is mainly about their description (physical and other facts).

This is a website about mosasaurs. The website includes many good facts about them, but lacks pictures.

This is a Wikipedia article about a type of sauropod called apatosaurus. (Website seen in 7-1 class...)

This is a website about stromatolites.