Unit Test 1-Earth's Place in the Universe

Front

What is a moon phase?

Back

The moon's appearance changes due to its position relative to the Earth and Sun.

Front

What is a galaxy?

Back

A galaxy is a collection of billions of stars.

Front

What is the primary difference between a star and a planet?

Back

Stars emit their own light, while planets reflect light.

Front

What causes solar flares?

Back

Solar flares occur when the Sun's magnetic field lines become twisted and snap.

Front

What causes the different moon phases observed from Earth?

Back

The different moon phases are caused by the relative positions of the Earth, Moon, and Sun.

Front

What is the composition of a star?

Back

Stars are primarily composed of hydrogen and helium.

Front

What is the role of gravity in the formation of galaxies?

Back

Gravity pulls together gas and dust to form stars and galaxies.

Front

What is the difference between a comet and an asteroid?

Back

Comets are icy bodies that release gas or dust, while asteroids are rocky bodies.

Front

What is the significance of the Hubble Space Telescope?

Back

The Hubble Space Telescope has provided deep space images and helped expand our understanding of the universe.

Front

What is the life cycle of a star?

Back

A star's life cycle includes stages: nebula, main sequence, red giant, and supernova or white dwarf.