Natural Inquirer is a free magazine for kids of varying ages. Simply setup an account with mailing address and select what issues you want mailed to you. There are series for three different age ranges: Pre-K through 2nd grade, Upper Elementary and Middle School and High School. This is wonderful resource for home education and children to explore the sciences at any time.
You can order up to 5 different issues at a time and they are mailed for free. There are even some free printable activities to go along with each issue.
There are also some scientist cards to order. You can choose for them to send you 100 randomly selected cards or select “Women in Science” set or “Wildlife” set, etc.