Pluto
Saturn
100

Why isn't Pluto consider a planet

It doesn't meet all three criteria

100

What are the rings made out of

What is water, ice, dust, and asteroid

200

What is the disc-shaped object located around Pluto

What is Kuiper Belt

200

What is Saturn made out of

What is hydrogen and helium

300

What is the giant, bright-heart shaped area on Pluto

What is Tombaugh Regio

300

Who discovered the rings on Saturn

Who is Christiaan huygen

400

What is Pluto's biggest moon

What is caron

400

How long is a year on Saturn

29.5 Earth years 

500

what small moon is missing from this list: Nix, hydrad, hverbere

What is Styx

500

What is the largest moon on Saturn

What is titan