I can change color when heated, and my presence can cause a reaction. What am I?
Category: Science · Difficulty: medium
Hint: Think of something used in chemistry tests.
Answer
pH indicator
Explanation
Litmus paper changes color in response to pH levels, indicating acidity or basicity.
This is a medium science riddle — a moderate challenge for most people. The answer is pH indicator.
More Science riddles
- I travel in waves and help you see. Without me, everything would be dark. What am I?
- What takes in sunlight to produce food without needing to eat?
- What can you catch but not throw?
- I can freeze you and make you shiver, yet I'm necessary for life. What am I?
- What two colors make green when combined?
- What turns green in the sun and helps you breathe?
- What element makes a penny shiny and is also used to keep your bones strong?
- What do you call a substance that can dissolve other substances?