Anatomy
Space
Shoes
00s
Water
100

This muscular organ pumps blood throughout the body about 100,000 times per day.

What is the heart?  

100

This force keeps planets in orbit around stars and gives galaxies their structure.

What is gravity?

100

This type of shoe was originally designed for basketball players and became iconic thanks to brands like Converse and Nike.

What are high‑tops?

100

This portable music device, released by Apple in 2001, changed how people listened to music on the go.

What is the iPod?

100

This ocean is the largest on Earth, holding more water than all others combined.

What is the Pacific Ocean?

200

This long tube connects the throat to the stomach and moves food using muscular contractions

What is the esophagus?

200

This galaxy is the home of our solar system and contains hundreds of billions of stars

What is the Milky Way?

200

This brand, founded in Germany in 1949, is famous for its three‑stripe design.

What is Adidas?

200

This popular boot style, often made of suede with a sheepskin lining, became a major fashion trend in the early 2000s.

What are UGG boots?

200

This common phase change occurs when liquid water becomes a gas at 100°C under standard atmospheric pressure.

What is boiling?

300

This bone is the longest and strongest in the human body, supporting your weight when you stand or walk

What is the femur?

300

This phase of a star’s life occurs when it collapses under its own gravity after exhausting its fuel, sometimes forming a black hole.

What is a supernova?

300

This kind of shoe is often worn in the rain to keep your feet dry. 

What are rain boots?

300

This social media site, launched in 2004, quickly became one of the most popular ways for people to connect online.

What is Facebook?

300

This term describes water that is safe to drink.

What is potable water?

400

This joint type found in the shoulder and hip allows the greatest range of motion.

What is a ball‑and‑socket joint

400

This closest star to Earth provides the light and heat necessary for life.

What is the Sun?

400

These shoes have wheels in the bottom so kids can roll around.

What are Heelys?

400

This animated film, released in 2001 and featuring a green ogre, won the first‑ever Academy Award for Best Animated Feature.

What is Shrek?

400

This scientific term describes the process by which plants release water vapor through their leaves.

What is transpiration?

500

This system includes glands that release hormones to regulate growth, metabolism, and reproduction.

What is the endocrine system?

500

This term describes the region around a star where temperatures are just right for liquid water to exist on a planet’s surface, making it potentially suitable for life.

What is the Goldilocks Zone?

500

This brand, founded in Oregon in 1964, is known for its “swoosh” logo and global influence in athletic footwear.

What is Nike?

500

This boy band, known for hits like “Bye Bye Bye,” announced a hiatus in 2002 that became permanent.

Who is NSYNC?

500

This property of water allows insects like water striders to “walk” across its surface.

What is surface tension?