What might learning about science  lead to? - new ideas - experiments - invent - accidents - atheism  The best answer is
new ideas

You've got all the hiking gear but your car wont start so you might have to head to the main road to do this for a ride? - waving thumb in air - hitting the next vehicle - plan - special boots - adventure  The best answer is
waving thumb in air

Why do people start to play sports at the gym? - practice - compete - to have fun - get in shape - stretch  The best answer is
get in shape