Questions with the keyword 'acid'

• How does disolving a rock in acid tell you how long a dinosaur lived? by gate49dug to Danny Comments: (No comments so far )
• How does dissolving a rock in acid tell you how old it is ? by star49dap to Danny Comments: (No comments so far )
• If there is a bone inside of the rock when you dissolve it in acid will it not dissolve the bone as well ? by star49dap to Danny Comments: (So far, one comment )