• Pebble Go

https://www.pebblego.com/
 

Science for Kids

http://www.sciencekids.co.nz/sciencefacts.html

How the Body Works

http://kidshealth.org/kid/htbw/htbw_main_page.html
NASA http://sse.jpl.nasa.gov/planets/index.cfm

Sheppard Software

http://www.sheppardsoftware.com/science.htm

Earth and Atmospheric Science

http://www.eo.ucar.edu/kids/