Our solar system consists of 8 planets, including our home, the Earth. There used to be 9 planets, but Pluto was declared a dwarf planet in 2006 and therefore is no longer included. 

Here is the order, starting from the sun outwards:

1. Mercury
2. Venus
3. Earth
4. Mars
5. Jupiter
6. Saturn
7. Uranus
8. Neptune

Remembering the order:

To help you remember the order, there is a simple mnemonic device, where the first letters of the words represent the names of the planets:

My Very Easy Method Just Speeds Up Names.

Order of the planets. Image created using images.nasa.gov.

Credits:
Sun: NASA/Goddard/SDO
Mercury: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
Venus: NASA/JPL-Caltech/Processed by Kevin M. Gill
Earth: NASA Goddard
Mars: NASA/JPL/Malin Space Science Systems
Jupiter: NASA/JPL/University of Arizona
Saturn: NASA/JPL
Uranus: NASA, ESA, A. Simon (NASA Goddard Space Flight Center), and M.H. Wong and A. Hsu (University of California, Berkeley)
Neptune: NASA/JPL