Sc-6th-Ch9-Rev

The sun occupies a fixed position in our solar system.

• True

• False

Distant heavenly bodies can be observed from the Arecibo observatory.

• True

• False

Stars are luminous bodies composed of plasma.

• True

• False

Planets are space bodies composed of dust and rock.

• True

• False

Mercury is the smallest planet in the solar system.

• True

• False

A new or recently formed star

• Supergiant Star

• Dwarf Star

• Organic material

• Milky Way

An old star in the throes of extinction

• Supergiant Star

• Dwarf Star

• Organic material

• Milky Way

The name given to our galaxy. It contains the solar system. It has a spiral shape.

• Supergiant Star

• Dwarf Star

• Organic material

• Milky Way

It contains carbon molecules and forms part of life-forms.

• Supergiant Star

• Dwarf Star

• Organic material

• Milky Way

A theory that suggests that Earth and the planets move around the sun

• outer planets

• Heliocentric theory

• constellation

• Kuiper Belt