#31 - Science Murder Riddle

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilled some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

Science Murder Riddle

When you mix bleach and ammonia [found in most cleaning products] it creates a deadly gas that can kill.

#32 - Good Science Riddle

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Good Science Riddle

An Echo

#33 - Science Riddle

What is black when you buy it, red when you use it, and gray when you throw it away?

Charcoal

#34 - Science Puzzle

How can you throw a ball as hard as you can and have it come back to you even if it doesnt hit anything there is nothing attached to it and no one else catches or throws it?

Science Puzzle

Throw the ball straight up in the air.