You May Be a True Science Fan If You Know 27/35 of These General Science Facts!

Take two parts hydrogen, one part oxygen, combine them and you have water.

That's a long way. Just a few kilometers closer and our planet would be even hotter. So let's be thankful for the accuracy!

That's right, our eyes are blinking often to help keep them lubricated. All in all, this adds up to 4,2 million times a year that they open and close.

Incredibly, just 11 percent of the land on earth is fertile. And while the population keeps on rising, feeding it is going to continue to be a problem in the future with that small an area of fertile land to sustain it.

Hummingbirds are incredible! Not only do they flap their wings more than 200 times per second, they can fly backwards and even hover.

Incredible if you think about it... 125 billion galaxies. There must be other forms of life outside surely!

Yes, the world's largest reef is located in Australia. It covers an area of 348 700 km².

Yes, the Great Barrier Reef. It is found off the coast of the state of Queensland in the northern part of the country.

With around 75 percent of the world's volcanoes, the Pacific Ring of Fire is a dangerous area. Covering an area of 40,000 km, it has 452 active volcanoes.

Yes, your eyes are able to differentiate between 10 million colors. Let's just hope you don't have to remember all their names?

That's simply unbelievable! But it is true. If you put them end to end, they would wrap around the globe around 2-and-a-half times.

Although most people believe they cannot sneeze with their eyes open, some people actually can. The fact that our eyes close when we sneeze is simply a reflex.

Although a butterfly feeds through a proboscis, that has no form of taste. Instead, a butterfly's feet tells it if the flower on which it has landed is​ good to eat or not.

Each leg has to audio inputs which allow sound to be broadcast right through the cricket's body. Neat, eh!

Sound travels faster in water. This is as a result of the particles making up water being closer to those making up air. This causes them to vibrate quicker, passing on sound easier.

That's right, sound travels four times faster in water! It covers 1,498 meters per second.

Velcro was the brainchild of George de Mestral, a Swiss inventor. While walking his dog in the forest, he noticed how the seeds of the Burdock plant stuck to his dog's coat. He looked at a seed under the microscope and noticed the hook system that the seeds use to attach themselves. And that's how the idea for Velcro came about.

Diamonds are 100 percent carbon. It's mad to think that one of the most common elements in the world can be turned into something so expensive.

This is as a result of the hydrogen (H) reacting with the oxygen (02) to form H20 (water).

Many think carbon is the most abundant element in the universe, but it is hydrogen. And the second most common? Helium, believe it or not.

In the right conditions, which include high temperatures, a male housefly with fairly low activity can live to be 28 days old.

That's pretty deep! It's around 80 yards.

You would need to lick a lot of stamps to put on weight, though.

Yes, your ears and nose never stop growing, which is bad news for those who consider them big already!

Bats are not able to walk. The bones in their legs are simply too weak to hold them up.

Yes, just eight minutes and 20 seconds is what it take light to travel a distance of 150,000,000 kilometers! Incredible. So you can just imagine how far a light year is away from the earth.

Believe it or not, it's the tiger's skin that is striped. No tiger has the same striped configuration,

The advantages of cartilage is that it makes the shark lighter and far more flexible than if it had a bone skeleton.

Sulfur, charcoal, and potassium nitrate (or saltpeter) make up gunpowder. Potassium nitrate performs as the oxidizer while the sulfur and charcoal are the fuel.

Yes, a tongue print is unique in each individual on Earth. Who finds this stuff out to begin with?

Yes, a quart of saliva a day! That's 10,000 gallons in a lifetime!

Due to the absence of gravity, astronauts can be up to two inches taller on their return to earth from space. This is a result of cartilage expanding without gravity to push it down.

Actually, your muscles make up slightly more than 1/2 your body weight! Incredible, really! Time to tone them up!

For years, the highest temperature on Earth was thought to be 136°F (58°C) in Libya in 1922. In 2013, the Guinness​ Book of Records disqualified this entry as it was recorded over asphalt and not in the desert. The record of the highest temperature then goes to Death Valley in 1913 where 56.7°C was recorded.

Yes, poor old J. The only letter not to be 'science cool'!