Science Riddles With Answers

What picture gets louder the more people look at it?

I look like a tiny bird on your screen and follow your mouse movements, but I never flap my wings. What am I?

What home can fit on a key but has no rooms?

What sound can you see but not hear?

What window opens a world but is not made of glass?

What button makes things stop instead of start?

What page turns itself without hands?

What bell can wake you up but has no metal?

What letter can travel around the world without an envelope?

I light up the night but I do not need a plug. What am I?

I am made of gas, wrapped in liquid, and I pop when I get too bold. What am I?

I sing at night, jump in the grass, and rub my wings to make music. What am I?

I follow you in sunlight, vanish in darkness, and copy your shape without touching you. What am I?

I can pull some metals closer, but I never use my hands. What am I?

You can feel me, hear me, and see what I move, but you cannot hold me. What am I?

I tell time by copying the sun's refusal to stand still; indoors I am useless, and at noon I almost disappear. What am I?

Scientists trust me only after trying to prove me wrong; assume me without testing and I am just a guess. What am I?

I find cracks before publication, improve an argument by pressing its weak points, and work best when the attack is fair. What am I?

If A=1, B=2, C=3, what is CAT worth?

If A=1, B=2, C=3, what is DOG worth?

If A=1, B=2, C=3, what is BRAIN worth?

If A=1, B=2, C=3, what is RIDDLE worth?

If A=1, B=2, C=3, what is PLAY worth?

What letter is 5 places after M?