I found them! After thinking about the book clubs we used to be in and wondering what the names of the science books were that we loved, I asked my sister. And she still has them!
The Weekly Reader Just Ask books answered simple questions about different science topics. They were easy to read, but they went into good detail.
They are not printed anymore, but you can find used copies on Amazon, ebay, and other sites.
My sister and I loved these books! And now my sister is passing on the science love to her children. They have become a favorite among them as well.
I would put these books on my list of the top things that made me love science as a child. These and my Kids Discover magazines.
Did anything inspire a love for science in your childhood? What do your kids like to read that contain science?