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This is the name for the process by which plants make their food.
What is photosynthesis?
The fourth president of the United States.
What is James Madison?
This type of rock, such as marble, is formed by heat and pressure.
What is metamorphic?
This ancient Greek city-state was known for its powerful army.
What is Sparta?
This is the study of birds.
What is ornithology?
The United States bought Alaska from this country.
What is Russia?
This is the study of mushrooms and other fungi.
What is mycology?
The first woman to make a million dollars in the United States.
What is Madam C.J. Walker?
This instrument is used to measure radiation.
What is a Geiger counter?
The Declaration of Independence was signed in this year.
What is 1776?