Material science
Computer Software
Sports and games
Hardware
Random
100
This is a volcanic rock found in underwater crust
What is basalt
100
A computer language used to run online programs, replacing Adobe's Flash
What is HTML 5?
100
A game played on a table; requiring two or an even ratio of people playing
What is foosball
100
Another name for ethernet
What is 'LAN'
100
The longest ever decimal known
What is PI (Ο )
200
An extremely cold substance giving off cold steam (LN2 abbreviation)
What is liquid nitrogen
200
A feature that allows you to see something in 3D that is not actually there; "AR" abbreviation.
What is Augmented Reality
200
An on-table game with a ball and and two bats
What is Table Tennis (TT/ ping pong)
200
An important part on the desktop PC for cooling
What is the heatsink
200
This is the 'eye seeing all' symbol on a one dollar bill.
What is the Eye of Providence (Has a pyramid with the top part an eye)
300
An element which is shiny, yet soft and brittle (atomic number 14) Material used in stucco
What is silicon
300
(a large interactive touchscreen)
What is a smartboard
300
This game actually had an interesting origin, coming from a gym with two peach baskets and a dodgeball, created for indoor winter sports.
What us basketball π
300
This is a type of video port, similar to HDMI, but higher quality
What is display port ππ»
300
A futuristic looking aircraft created in the mid 1960s by Lockheed Martin
What is the Sr71 Blackbird
400
One of the materials of Earth's core a type of coin
What is nickel
400
One of the most enjoyed and most used Windows operating systems. 2009 launch
What is Windows 7
400
This is a type of game played in large arcades, based on a simple game. 
What is neon golf
400
An audio device successfully released in 2001
What is the Apple iPod
400
A popular website used to play online games (This is a noun)
What is 'CoolMathGames'
500
This is a 'glowing element' used for old signs in the mid and late 1900s, and is considered a noble gas.
What is Neon
500
A suite offered by Microsoft to use different applications
What is Microsoft Office
500
This is a game where you take a card to make a move, and can kick someone out. Originating from "Trouble" game and is similar to "Ludo"
What is "Sorry"
500
The three main computer operating systems used today
Windows, Mac, and Linux
500
Tire without "ire" crain without "c", combine both to get this
What is train