A Life in the Ocean: The Story of Oceanographer Sylvia Earle http://www.amazon.com/Life-Ocean-Story-Oceanographer-Sylvia/dp/0374380686/
Violet the Pilot by Steve Breen http://www.amazon.com/Violet-Pilot-Steve-Breen/dp/0803731256/
Extra Yarn (not science, but definitely maker with female hero) http://www.amazon.com/Extra-Yarn-Mac-Barnett/dp/0061953385/
Oh No! Or How My Science Project Destroyed the World http://www.amazon.com/Oh-No-Science-Project-Destroyed/dp/
Katy and the Big Snow (not science, but transportation with female hero) http://www.amazon.com/Katy-Big-Snow-Vol-2/dp/0395185629/
Amelia and Eleanor go for a ride
Brad Meltzer - Heroes for My Daughter, Amelia Earhart, Rosa Parks, Lucille Ball, Helen Keller
17 Things I'm not Allowed To Do Anymore" and "11 Experiments That Failed" by Jenny Offill
"Who Pooped in the Park?"
Board books such as Eric Carle's "The Very Hungry Caterpillar" and "The Tiny Seed" for biology
"The Paper Bag Princess"
Tinker Bell, a "tinker fairy" mechanical engineer who builds machines and is the main character of the story