Astronomy 1

Front

What planet is closest in size to Venus?

Back

Earth

Front

What does gravity do?

Back

Causes the planets to orbit the sun.

Front

What does the Big Bang Theory describe?

Back

The creation of the universe.

Front

What is the order of a meteor as it falls to Earth?

Back

Meteoroid, meteor, meteorite.

Front

What model has Earth at the center of the universe?

Back

Geocentric model.

Front

What is a meteoroid?

Back

A small rocky or metallic body in outer space.

Front

What is a meteor?

Back

A meteoroid that enters the Earth's atmosphere and produces a streak of light.

Front

What is a meteorite?

Back

A meteoroid that survives its passage through the Earth's atmosphere and lands on the surface.

Front

What is the heliocentric model?

Back

The model of the solar system with the Sun at the center.

Front

What is the difference between a planet and a star?

Back

A planet orbits a star and does not produce its own light, while a star generates light and heat through nuclear fusion.