Parts lists, circuit diagrams, and example code for each of these Arduino science projects are available on the Science Buddies website:

1. Drone: https://www.sciencebuddies.org/stem-activities/diy-mini-drone-arduino-altitude-control
2. Self-driving car: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Robotics_p042/robotics/arduino-self-driving-car
3. Clinostat: https://www.sciencebuddies.org/science-fair-projects/project-ideas/PlantBio_p054/plant-biology/plants-grow-microgravity-arduino-clinostat
4. Stroboscopic fountain: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p092/electricity-electronics/arduino-strobe-light
5. Voice-controlled lamp: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p093/electricity-electronics/arduino-voice-controlled-lamp
6. Mass driver: https://www.sciencebuddies.org/science-fair-projects/project-ideas/Elec_p094/electricity-electronics/arduino-mass-driver
7. Infinity mirror: https://www.sciencebuddies.org/science-fair-projects/project-ideas/CompSci_p050/computer-science/color-changing-infinity-mirror-arduino
8. Artificial pancreas: https://www.sciencebuddies.org/science-fair-projects/project-ideas/HumBio_p040/human-biology-health/developing-an-artificial-pancreas

Introduction to Arduino tutorials: https://www.sciencebuddies.org/science-fair-projects/references/how-to-use-an-arduino