General Science
General Social Studies
Space
Geography
Ecosystems
100

What is the center of an atom?

nucleus

100

What branch of government makes laws?

Legislative

100

What planet is closest to the sun?

Mercury

100

What is the largest desert in the world?

Sahara

100

What do we call living parts of an ecosystem?

biotic

200

What gas do plants use for photosynthesis?

carbon dioxide

200

What is the government by the people called?

democracy

200

What is Earth’s only natural satellite?

The moon

200

What is the largest country by land area?

Russia

200

What is a plant that makes its own food?

producer

300

What human organ pumps blood?

The heart

300

What ancient civilization built pyramids?

Egyptians

300

What is the outermost layer of Earth?

crust

300

What river forms part of the Texas-Mexico border?

Rio Grande

300

What is the place an organism lives?

habitat

400

What is the hardest natural substance?

a diamond

400

What is a person who moves for work or safety from one country to another?

a migrant

400

What is the primary gas in the atmosphere?

Nitrogen

400

What continent is Brazil located in?

South America

400

What is it called when species depend on each other?

Interdependence

500

What type of circuit has only one path?

Series

500

What economic system has private ownership? Hint it starts with a C.

Capitalism

500

What phase of the moon is fully lit?

full moon

500

What lines run east to west on a globe?

latitude

500

What do we call a long-term environmental change?

succession

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