Human Body
What is the strongest muscle in the body?
The jaw
How long can a human live without water?
About one week
How many continents are there on Earth?
Seven
What is the largest ocean on Earth?
The Pacific Ocean
What planet has the most gravity?
Jupiter
Roughly how long does it take for the sun’s light to reach Earth?
8 minutes
What percentage of your brain is made up of fat?
Around 60%
Where on the human body are the most sweat glands?
The palms of the hands and soles of the feel
Where is the hottest recorded place on Earth?
Death Valley, California
What percentage of the water on Earth is saltwater?
97 percent
Roughly how many times bigger is the Earth than the Moon?
Four times bigger
How long does it take for the International Space Station to orbit the Earth?
About 90 minutes
What is the hardest substance in the human body?
Tooth enamel
How many skin cells does a person shed every minute?
30,000
What is 10 times saltier than seawater?
The Dead Sea
What is the largest desert on Earth?
Antarctica
Which two planets have no moons?
Mercury and Venus
Which is the most abundant element in the universe?
Hydrogen
Does your body have more human cells or bacteria cells?
For each human cell in your body there are a out ten bacteria cells
On average, how Many hairs are there on a person's head?
Roughly 100,000
What structural layer do plants have in a cell that humans do not?
A cell wall
What is the driest state in the USA?
Nevada, which receives just over 10 inches of rain per year
How many planets can be seen from Earth without a telescope?
5
What is the third brightest celestial object in our sky?
Venus
How much blood is in a 150-180 lbs adult human?
1.2 to 1.5 gallons of blood
What is the lifespan of a human red blood cell?
About 120 days
What is the oldest know living thing on Earth?
A bristlecone pine in California is about 4,600 years old
What is the most abundant element in the Earth's crust?
Oxygen
How many times has Neptune orbited the Sun since its discovery in 1846?
1 time. It was completed in 2011
How many years would it take to walk to the moon?
Nine years