No, the first four inner planets are not gas giants. They are terrestrial planets.

Here's the breakdown:

* Inner Planets (Terrestrial):

* Mercury

* Venus

* Earth

* Mars

* Outer Planets (Gas Giants):

* Jupiter

* Saturn

* Uranus

* Neptune

The inner planets are primarily composed of rock and metal, while the outer planets are primarily composed of gas (hydrogen and helium) with a smaller, solid core.