STEM Activity Book Creation

I'm in need of a creative and experienced individual to design multiple comprehensive STEM activity book sfor primary grade students. The book should be geared towards children 1st to 5th grade and should span approximately 76-100 pages in length. Key Requirements: - Design and create engaging STEM activity books for children in 1st to 5th grade. - Cover all core STEM subjects including Science, Technology, Engineering, and Mathematics. - Ensure the activities are age-appropriate, fun, and educational.