Unlike most birds, these tuxedo-clad creatures can’t fly in the air, but they are expert swimmers.
What is a penguin?
This red fruit is unique because it is the only fruit that wears its seeds on the outside.
What is a strawberry?
Known as the "Red Planet," this neighbor to Earth gets its color from iron oxide (rust) on its surface.
What is Mars?
Invented in 1879 by Thomas Edison, this bright invention brought light into homes without using candles or gas lamps.
What is the Lightbulb?
These two organs in your chest fill up with air every time you breathe in.
What are your lungs?
While humans have just one heart, this ocean creature has three hearts and blue blood.
What is an octopus?
This common movie snack pops because heated water trapped inside its kernel turns into steam and expands.
What is popcorn?
This giant planet is famous for its prominent, bright rings made of ice and rock particles.
What is Saturn?
Before it was used for fragile packages, this popping packing material was originally invented to be textured wallpaper.
What is Bubble Wrap?
This organ uses about 20% of all the energy and oxygen your body produces, despite making up only 2% of your total weight.
What is the brain?
This slow-moving mammal can hold its breath underwater longer than a dolphin—up to 40 minutes!
What is a sloth?
Because it is made of 25% air, this crisp fall fruit will float if you drop it in a bucket of water.
What is an apple?
Because it rotates so slowly, one day on this hot, cloud-covered planet is actually longer than its whole year.
What is Venus?
This useful metal food container was invented in 1810, but the tool used to open it wasn't invented until 48 years later.
What is the can opener?
Just like everyone has a unique fingerprint, every single human being has a unique pattern on this part of their mouth.
What is the tongue?
Because of their unique ridges, the prints of this cute Australian marsupial are almost identical to human fingerprints.
What is a koala?
Before the 17th century, almost all cultivated carrots were this color, not orange.
What is purple?
Scientists believe extreme atmospheric pressure on Neptune and Uranus creates storms that literally rain these precious gems.
What are diamonds?
In 1952, this customizable potato toy became the very first toy ever advertised on television.
Who is Mr. Potato Head?
This giant, pump-like muscle beats about 100,000 times a day to move blood through your entire body.
What is the heart?
To prevent themselves from floating away from each other while sleeping in water, sea otters do this.
What is hold hands?
Honey never spoils; archeologists have found edible honey inside Egyptian tombs that is over this many thousands of years old.
What is 3,000 years old?
Footprints left on the Moon by Apollo astronauts will stay there for millions of years because there is no this to blow them away.
What is wind (or atmosphere)?
The first message ever sent over the internet in 1969 was supposed to be the word "LOGIN," but the system crashed after typing these two letters.
What are L and O?
Your mouth produces enough of this watery liquid every day to fill a full 2-liter soda bottle, which helps break down your food.
What is saliva (or spit)?