Which is Harder: Physics or Chemistry?

When it comes to difficulty, physics and chemistry are both challenging subjects. Physics is more mathematically-oriented and has more abstract concepts, making it a bit harder than chemistry. Chemistry, on the other hand, requires critical thinking to solve complex problems, as well as more mathematics and calculations to explain solutions. If you have a good grasp of physics and a good memory, biology classes may not be too difficult for you. If you're still in high school, it's best to challenge yourself by taking the most complex courses in biology, physics and chemistry.