Do you pull out all your Star Wars gear to celebrate May fourth every year? The fact that you even have Star Wars gear tells us that you're probably into all the STEM (science, technology, engineering, math) holidays.

But it seems new ones are popping up every year. When it comes to math and science days, how in-the-know are you? We'll take a look at the most popular holidays to celebrate this 2020.

1. Pi Day

Once you've used a calendar maker to craft a custom Math and Science Holidays calendar, put a big star on March 14th - Pi Day.

While Pi Day sounds like a festive day that involves fruit or cream-filled pastries, it's really an occasion to celebrate pi - the constant that tells us the ratio of a circle's circumference to its diameter.

Though plenty of people do use March 14th (3.14) each year as an excuse to chow down on actual pie. You can celebrate it any way you see fit.

2. Engineers Week

Are you aware that George Washington is considered the United States' first engineer? He was a surveyor, so that counts.

So in tribute to the country's first engineer, whichever week encompasses Washington's birthday each year (February 22nd) is now designated as National Engineers Week.

While it's a weeklong celebration of all the amazing things that come from the engineering workforce, it's also a week to encourage students to consider this lucrative career.

And if you're already an engineer, it's a week to pat yourself on the back and perhaps even engineer your own celebration.

3. Pythagorean Theorem Day

Triangles are awesome. So what's the best way to celebrate them? With Pythagorean Theorem Day, of course.

In case you need a refresher, the theorem states that the length of the sides of a right triangle always adheres to the equation a(squared) + b(squared) = c(squared).

But this is an irregularly occurring holiday.

That's because the holiday must align with the Pythagorean Theorem. For example, the last one was on Aug. 15, 2017. (8(squared) + 15(squared) = 17(squared))

Can you figure out what the date will be in 2020?

4. Mole Day

Chemists rejoice on Mole Day.

This holiday falls on October 23rd and honors Avagadro's number (6.02×10(to the 23rd power)), which is also the basic unit of measurement in chemistry called the Mole.

Wacky scientists and mathematicians use this holiday to come up with a deluge of mole-related puns and jokes.

For instance, you might find yourself at a party that has a Molar Eclipse theme, playing whack-a-mole, and eating copious amounts of Mexican food with mole sauce.

5. National Aviation Day

August 19th marks National Aviation Day.

But it's not just a day to engineer amazing paper airplanes while discussing Bernoulli's Principle. (Both of which should be done, by the way.)

With the rise of SpaceX and other emerging technologies, younger people have a newfound interest in aeronautics and space exploration.

This is the perfect day to encourage such endeavors.

Celebrate Math and Science Days

Where would we be without science, technology, engineering, and math? It's just too much to think about.

So get out of your brain for a while and have some fun with these cool math and science days.

Then when it's time to return to science mode, come on back to our site to read up on the latest in all things science.