Had when i worked in a preschool and kids love them! I would use colored sand instead of white salt. DIY salt tray with alphabet cards. Easy to make and kids have fun smoothing out the salt after correctly making the letter
What a cool science project. Blow into the straws and watch the lungs inflate!
Snow Storm in a Jar
"Snow Storm in a Jar" Science Experiment (from Growing a Jeweled Rose)
spring garden cutting and fine motor skill preschool printable - Gardening And Living