Which earth science lesson is especially appropriate for primary grades?

a. weather

b. stars

c. volcanoes

d. moon

What efforts would global warming most likely have on glaciers

What occurs an updraft? A. warm air from the west rises B. cool air from the west rises C. warm air from the south rises D. cool air from the south rises

Fossils provide evidence for evolution, and often intermediate forms. One example of an evolutionary intermediate is Odontochelys, a Triassic-aged turtle with teeth. What does this early turtle tell us about evolution of the turtle shell?

Which of the following mountain ranges is not part of the alpine mountain system? a. ural mountains c. apennines b. carpathian mountains d. pyrenees

Where in Central America is savanna vegetation found?

What type of triangle is a cat

After two half-lives, how much of the original material has decayed?

Which of the following is not a manmade cause of global warming? a. burning fossil fuels b. deforestation c. respiration d.

De ce sunt vulcanii activi in america?

How are gems different from regular minerals? Regular minerals are less common than gems. Regular minerals are more durable than gems. Gems are more valuable than regular minerals. Gems are more malleable than regular minerals.